166977385442092 has 24 divisors (see below), whose sum is σ = 292622163331680. Its totient is φ = 83371060755840.

The previous prime is 166977385442089. The next prime is 166977385442107. The reversal of 166977385442092 is 290244583779661.

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, 87285384 + ... + 89177872.

It is an arithmetic number, because the mean of its divisors is an integer number (12192590138820).

It is a 1-persistent number, because it is pandigital, but 2⋅166977385442092 = 333954770884184 is not.

Almost surely, 2^{166977385442092} is an apocalyptic number.

It is an amenable number.

166977385442092 is a deficient number, since it is larger than the sum of its proper divisors (125644777889588).

166977385442092 is a wasteful number, since it uses less digits than its factorization.

166977385442092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923561 (or 1923559 counting only the distinct ones).

The product of its (nonzero) digits is 1097349120, while the sum is 73.

The spelling of 166977385442092 in words is "one hundred sixty-six trillion, nine hundred seventy-seven billion, three hundred eighty-five million, four hundred forty-two thousand, ninety-two".