166897168662624 has 96 divisors (see below), whose sum is σ = 439014252063744. Its totient is φ = 55517055659520.

The previous prime is 166897168662607. The next prime is 166897168662667. The reversal of 166897168662624 is 426266861798661.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 166897168662624.

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, 89631319 + ... + 91474409.

It is an arithmetic number, because the mean of its divisors is an integer number (4573065125664).

Almost surely, 2^{166897168662624} is an apocalyptic number.

It is an amenable number.

166897168662624 is an abundant number, since it is smaller than the sum of its proper divisors (272117083401120).

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

166897168662624 is a wasteful number, since it uses less digits than its factorization.

166897168662624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845060 (or 1845052 counting only the distinct ones).

The product of its digits is 3009871872, while the sum is 78.

The spelling of 166897168662624 in words is "one hundred sixty-six trillion, eight hundred ninety-seven billion, one hundred sixty-eight million, six hundred sixty-two thousand, six hundred twenty-four".