166056110564520 has 96 divisors (see below), whose sum is σ = 547573455545760. Its totient is φ = 40256026800000.

The previous prime is 166056110564483. The next prime is 166056110564551. The reversal of 166056110564520 is 25465011650661.

It is a self number, because there is not a number n which added to its sum of digits gives 166056110564520.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5718171106 + ... + 5718200145.

It is an arithmetic number, because the mean of its divisors is an integer number (5703890161935).

Almost surely, 2^{166056110564520} is an apocalyptic number.

166056110564520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166056110564520 is an abundant number, since it is smaller than the sum of its proper divisors (381517344981240).

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

166056110564520 is a wasteful number, since it uses less digits than its factorization.

166056110564520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436371287 (or 11436371272 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 166056110564520 in words is "one hundred sixty-six trillion, fifty-six billion, one hundred ten million, five hundred sixty-four thousand, five hundred twenty".