157105221522 has 16 divisors (see below), whose sum is σ = 314221550880. Its totient is φ = 52366555872.

The previous prime is 157105221509. The next prime is 157105221541. The reversal of 157105221522 is 225122501751.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272968 + ... + 623475.

It is an arithmetic number, because the mean of its divisors is an integer number (19638846930).

Almost surely, 2^157105221522 is an apocalyptic number.

157105221522 is an abundant number, since it is smaller than the sum of its proper divisors (157116329358).

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

157105221522 is a wasteful number, since it uses less digits than its factorization.

157105221522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925657.

The product of its (nonzero) digits is 14000, while the sum is 33.

The spelling of 157105221522 in words is "one hundred fifty-seven billion, one hundred five million, two hundred twenty-one thousand, five hundred twenty-two".