166752212055 has 128 divisors (see below), whose sum is σ = 320524646400. Its totient is φ = 73571097600.

The previous prime is 166752211981. The next prime is 166752212063. The reversal of 166752212055 is 550212257661.

It is not a de Polignac number, because 166752212055 - 2¹⁵ = 166752179287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166752211998 and 166752212016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18423171 + ... + 18432219.

It is an arithmetic number, because the mean of its divisors is an integer number (2504098800).

Almost surely, 2^166752212055 is an apocalyptic number.

166752212055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166752212055 is a deficient number, since it is larger than the sum of its proper divisors (153772434345).

166752212055 is a wasteful number, since it uses less digits than its factorization.

166752212055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174 (or 9152 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 166752212055 in words is "one hundred sixty-six billion, seven hundred fifty-two million, two hundred twelve thousand, fifty-five".