156425048640 has 672 divisors, whose sum is σ = 641407952640. Its totient is φ = 35545153536.

The previous prime is 156425048639. The next prime is 156425048677. The reversal of 156425048640 is 46840524651.

It is a happy number.

156425048640 is a `hidden beast` number, since 1 + 5 + 64 + 2 + 504 + 86 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105053016 + ... + 105054504.

It is an arithmetic number, because the mean of its divisors is an integer number (954476120).

Almost surely, 2^156425048640 is an apocalyptic number.

156425048640 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 156425048640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320703976320).

156425048640 is an abundant number, since it is smaller than the sum of its proper divisors (484982904000).

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

156425048640 is a wasteful number, since it uses less digits than its factorization.

156425048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 156425048640 in words is "one hundred fifty-six billion, four hundred twenty-five million, forty-eight thousand, six hundred forty".