157004994568 has 8 divisors (see below), whose sum is σ = 294384364830. Its totient is φ = 78502497280.

The previous prime is 157004994493. The next prime is 157004994569. The reversal of 157004994568 is 865499400751.

It can be written as a sum of positive squares in only one way, i.e., 117307620004 + 39697374564 = 342502^2 + 199242^2 .

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

It is not an unprimeable number, because it can be changed into a prime (157004994569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812812153 + ... + 9812812168.

Almost surely, 2^157004994568 is an apocalyptic number.

It is an amenable number.

157004994568 is a deficient number, since it is larger than the sum of its proper divisors (137379370262).

157004994568 is a wasteful number, since it uses less digits than its factorization.

157004994568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625624327 (or 19625624323 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 157004994568 in words is "one hundred fifty-seven billion, four million, nine hundred ninety-four thousand, five hundred sixty-eight".