156377425481550 has 1728 divisors, whose sum is σ = 571331261030400. Its totient is φ = 29889699840000.

The previous prime is 156377425481527. The next prime is 156377425481573. The reversal of 156377425481550 is 55184524773651.

156377425481550 is a `hidden beast` number, since 1 + 5 + 6 + 3 + 7 + 74 + 2 + 5 + 4 + 8 + 1 + 550 = 666.

156377425481550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156377425481527) and next prime (156377425481573).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 863 ways as a sum of consecutive naturals, for example, 55829140150 + ... + 55829142950.

It is an arithmetic number, because the mean of its divisors is an integer number (330631516800).

Almost surely, 2^{156377425481550} is an apocalyptic number.

156377425481550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156377425481550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285665630515200).

156377425481550 is an abundant number, since it is smaller than the sum of its proper divisors (414953835548850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156377425481550 is a wasteful number, since it uses less digits than its factorization.

156377425481550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 141120000, while the sum is 63.

The spelling of 156377425481550 in words is "one hundred fifty-six trillion, three hundred seventy-seven billion, four hundred twenty-five million, four hundred eighty-one thousand, five hundred fifty".