156285374840 has 32 divisors (see below), whose sum is σ = 401876678880. Its totient is φ = 53583556992.

The previous prime is 156285374837. The next prime is 156285374897. The reversal of 156285374840 is 48473582651.

It is a super-3 number, since 3×156285374840³ (a number of 35 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279080747 + ... + 279081306.

It is an arithmetic number, because the mean of its divisors is an integer number (12558646215).

Almost surely, 2^156285374840 is an apocalyptic number.

156285374840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156285374840 is an abundant number, since it is smaller than the sum of its proper divisors (245591304040).

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

156285374840 is a wasteful number, since it uses less digits than its factorization.

156285374840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558162071 (or 558162067 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 156285374840 in words is "one hundred fifty-six billion, two hundred eighty-five million, three hundred seventy-four thousand, eight hundred forty".