156874086721 has 8 divisors (see below), whose sum is σ = 171145819584. Its totient is φ = 142604095920.

The previous prime is 156874086713. The next prime is 156874086731. The reversal of 156874086721 is 127680478651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156874086721 - 2³ = 156874086713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156874086731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243541 + ... + 610786.

It is an arithmetic number, because the mean of its divisors is an integer number (21393227448).

Almost surely, 2^156874086721 is an apocalyptic number.

156874086721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

156874086721 is a deficient number, since it is larger than the sum of its proper divisors (14271732863).

156874086721 is a wasteful number, since it uses less digits than its factorization.

156874086721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871031.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 156874086721 in words is "one hundred fifty-six billion, eight hundred seventy-four million, eighty-six thousand, seven hundred twenty-one".