155775453600 has 288 divisors, whose sum is σ = 550235657664. Its totient is φ = 38051020800.

The previous prime is 155775453569. The next prime is 155775453641. The reversal of 155775453600 is 6354577551.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 155775453600.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4068144 + ... + 4106256.

It is an arithmetic number, because the mean of its divisors is an integer number (1910540478).

Almost surely, 2^155775453600 is an apocalyptic number.

155775453600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155775453600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275117828832).

155775453600 is an abundant number, since it is smaller than the sum of its proper divisors (394460204064).

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

155775453600 is a wasteful number, since it uses less digits than its factorization.

155775453600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38280 (or 38267 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 48.

The spelling of 155775453600 in words is "one hundred fifty-five billion, seven hundred seventy-five million, four hundred fifty-three thousand, six hundred".