157568665128028 has 48 divisors (see below), whose sum is σ = 347330365933824. Its totient is φ = 60757498391040.

The previous prime is 157568665128019. The next prime is 157568665128059. The reversal of 157568665128028 is 820821566865751.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2637014326 + ... + 2637074077.

It is an arithmetic number, because the mean of its divisors is an integer number (7236049290288).

Almost surely, 2^{157568665128028} is an apocalyptic number.

It is an amenable number.

157568665128028 is an abundant number, since it is smaller than the sum of its proper divisors (189761700805796).

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

157568665128028 is a wasteful number, since it uses less digits than its factorization.

157568665128028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274088522 (or 5274088520 counting only the distinct ones).

The product of its (nonzero) digits is 387072000, while the sum is 70.

The spelling of 157568665128028 in words is "one hundred fifty-seven trillion, five hundred sixty-eight billion, six hundred sixty-five million, one hundred twenty-eight thousand, twenty-eight".