156015451844 has 24 divisors (see below), whose sum is σ = 315120324288. Its totient is φ = 66201746400.

The previous prime is 156015451819. The next prime is 156015451873. The reversal of 156015451844 is 448154510651.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 156015451795 and 156015451804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27581234 + ... + 27586889.

It is an arithmetic number, because the mean of its divisors is an integer number (13130013512).

Almost surely, 2^156015451844 is an apocalyptic number.

156015451844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

156015451844 is an abundant number, since it is smaller than the sum of its proper divisors (159104872444).

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

156015451844 is a wasteful number, since it uses less digits than its factorization.

156015451844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55168235 (or 55168233 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 44.

The spelling of 156015451844 in words is "one hundred fifty-six billion, fifteen million, four hundred fifty-one thousand, eight hundred forty-four".