156019345920 has 120 divisors (see below), whose sum is σ = 540338955156. Its totient is φ = 41605152768.

The previous prime is 156019345913. The next prime is 156019345931. The reversal of 156019345920 is 29543910651.

156019345920 is a `hidden beast` number, since 1 + 5 + 6 + 0 + 193 + 459 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156018680064 + 665856 = 394992^2 + 816^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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 11 ways as a sum of consecutive naturals, for example, 3362797 + ... + 3408876.

Almost surely, 2^156019345920 is an apocalyptic number.

156019345920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156019345920 is an abundant number, since it is smaller than the sum of its proper divisors (384319609236).

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

156019345920 is an equidigital number, since it uses as much as digits as its factorization.

156019345920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771702 (or 6771683 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 156019345920 in words is "one hundred fifty-six billion, nineteen million, three hundred forty-five thousand, nine hundred twenty".