157840825664 has 14 divisors (see below), whose sum is σ = 313215388554. Its totient is φ = 78920412800.

The previous prime is 157840825577. The next prime is 157840825693. The reversal of 157840825664 is 466528048751.

It can be written as a sum of positive squares in only one way, i.e., 109349262400 + 48491563264 = 330680^2 + 220208^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1233131387 + ... + 1233131514.

Almost surely, 2^157840825664 is an apocalyptic number.

It is an amenable number.

157840825664 is a deficient number, since it is larger than the sum of its proper divisors (155374562890).

157840825664 is an equidigital number, since it uses as much as digits as its factorization.

157840825664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466262913 (or 2466262903 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 157840825664 in words is "one hundred fifty-seven billion, eight hundred forty million, eight hundred twenty-five thousand, six hundred sixty-four".