157866703947072 has 42 divisors (see below), whose sum is σ = 452496403155498. Its totient is φ = 52622234648832.

The previous prime is 157866703947059. The next prime is 157866703947097. The reversal of 157866703947072 is 270749307668751.

157866703947072 is a `hidden beast` number, since 1 + 5 + 7 + 86 + 6 + 7 + 0 + 3 + 9 + 470 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 153298669755456 + 4568034191616 = 12381384^2 + 2137296^2 .

It is a super-2 number, since 2×157866703947072² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137037068823 + ... + 137037069974.

It is a 1-persistent number, because it is pandigital, but 2⋅157866703947072 = 315733407894144 is not.

Almost surely, 2^{157866703947072} is an apocalyptic number.

157866703947072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157866703947072 is an abundant number, since it is smaller than the sum of its proper divisors (294629699208426).

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

157866703947072 is a wasteful number, since it uses less digits than its factorization.

157866703947072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274074138815 (or 274074138802 counting only the distinct ones).

The product of its (nonzero) digits is 746807040, while the sum is 72.

The spelling of 157866703947072 in words is "one hundred fifty-seven trillion, eight hundred sixty-six billion, seven hundred three million, nine hundred forty-seven thousand, seventy-two".