156013649640 has 96 divisors (see below), whose sum is σ = 525823814880. Its totient is φ = 41603637312.

The previous prime is 156013649639. The next prime is 156013649663. The reversal of 156013649640 is 46946310651.

156013649640 is a `hidden beast` number, since 1 + 5 + 601 + 36 + 4 + 9 + 6 + 4 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 8015674 + ... + 8035113.

It is an arithmetic number, because the mean of its divisors is an integer number (5477331405).

Almost surely, 2^156013649640 is an apocalyptic number.

156013649640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156013649640 is an abundant number, since it is smaller than the sum of its proper divisors (369810165240).

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

156013649640 is a wasteful number, since it uses less digits than its factorization.

156013649640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16050813 (or 16050797 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 156013649640 in words is "one hundred fifty-six billion, thirteen million, six hundred forty-nine thousand, six hundred forty".