166055210189964 has 36 divisors (see below), whose sum is σ = 429988491430680. Its totient is φ = 54001694370240.

The previous prime is 166055210189917. The next prime is 166055210190011. The reversal of 166055210189964 is 469981012550661.

166055210189964 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 5 + 521 + 0 + 18 + 9 + 96 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (166055210189917) and next prime (166055210190011).

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56251763494 + ... + 56251766445.

Almost surely, 2^{166055210189964} is an apocalyptic number.

It is an amenable number.

166055210189964 is an abundant number, since it is smaller than the sum of its proper divisors (263933281240716).

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

166055210189964 is a wasteful number, since it uses less digits than its factorization.

166055210189964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112503529990 (or 112503529985 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 166055210189964 in words is "one hundred sixty-six trillion, fifty-five billion, two hundred ten million, one hundred eighty-nine thousand, nine hundred sixty-four".