166522006656 has 64 divisors (see below), whose sum is σ = 491471210400. Its totient is φ = 55507334400.

The previous prime is 166522006631. The next prime is 166522006657. The reversal of 166522006656 is 656600225661.

It is a happy number.

166522006656 is a `hidden beast` number, since 1 + 66 + 522 + 0 + 0 + 6 + 65 + 6 = 666.

166522006656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (166522006657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24088270 + ... + 24095181.

Almost surely, 2^166522006656 is an apocalyptic number.

166522006656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166522006656 is an abundant number, since it is smaller than the sum of its proper divisors (324949203744).

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

166522006656 is an equidigital number, since it uses as much as digits as its factorization.

166522006656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48183474 (or 48183456 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 166522006656 in words is "one hundred sixty-six billion, five hundred twenty-two million, six thousand, six hundred fifty-six".