157664869288 has 8 divisors (see below), whose sum is σ = 295621629930. Its totient is φ = 78832434640.

The previous prime is 157664869283. The next prime is 157664869321. The reversal of 157664869288 is 882968466751.

It can be written as a sum of positive squares in only one way, i.e., 147807953764 + 9856915524 = 384458^2 + 99282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×157664869288² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157664869283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9854054323 + ... + 9854054338.

Almost surely, 2^157664869288 is an apocalyptic number.

It is an amenable number.

157664869288 is a deficient number, since it is larger than the sum of its proper divisors (137956760642).

157664869288 is a wasteful number, since it uses less digits than its factorization.

157664869288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19708108667 (or 19708108663 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 70.

The spelling of 157664869288 in words is "one hundred fifty-seven billion, six hundred sixty-four million, eight hundred sixty-nine thousand, two hundred eighty-eight".