166157443522 has 32 divisors (see below), whose sum is σ = 311996603520. Its totient is φ = 64710401280.

The previous prime is 166157443453. The next prime is 166157443549. The reversal of 166157443522 is 225344751661.

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, 12030004 + ... + 12043807.

It is an arithmetic number, because the mean of its divisors is an integer number (9749893860).

Almost surely, 2^166157443522 is an apocalyptic number.

166157443522 is a deficient number, since it is larger than the sum of its proper divisors (145839159998).

166157443522 is a wasteful number, since it uses less digits than its factorization.

166157443522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24073866.

The product of its digits is 1209600, while the sum is 46.

The spelling of 166157443522 in words is "one hundred sixty-six billion, one hundred fifty-seven million, four hundred forty-three thousand, five hundred twenty-two".