156868271730 has 80 divisors (see below), whose sum is σ = 435407917824. Its totient is φ = 40482128160.

The previous prime is 156868271719. The next prime is 156868271759. The reversal of 156868271730 is 37172868651.

It is a happy number.

156868271730 is a `hidden beast` number, since 1 + 568 + 6 + 8 + 2 + 7 + 1 + 73 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3098512 + ... + 3148731.

Almost surely, 2^156868271730 is an apocalyptic number.

156868271730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156868271730 is an abundant number, since it is smaller than the sum of its proper divisors (278539646094).

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

156868271730 is a wasteful number, since it uses less digits than its factorization.

156868271730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247293 (or 6247284 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 156868271730 in words is "one hundred fifty-six billion, eight hundred sixty-eight million, two hundred seventy-one thousand, seven hundred thirty".