166532093568 has 96 divisors (see below), whose sum is σ = 507402532260. Its totient is φ = 52245356544.

The previous prime is 166532093549. The next prime is 166532093603. The reversal of 166532093568 is 865390235661.

It is a happy number.

166532093568 is a `hidden beast` number, since 1 + 6 + 6 + 53 + 20 + 9 + 3 + 568 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 151034831424 + 15497262144 = 388632^2 + 124488^2 .

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

It is a super-2 number, since 2×166532093568² (a number of 23 digits) contains 22 as substring.

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, 4232155 + ... + 4271322.

Almost surely, 2^166532093568 is an apocalyptic number.

166532093568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

166532093568 is an abundant number, since it is smaller than the sum of its proper divisors (340870438692).

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

166532093568 is a wasteful number, since it uses less digits than its factorization.

166532093568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503514 (or 8503499 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The spelling of 166532093568 in words is "one hundred sixty-six billion, five hundred thirty-two million, ninety-three thousand, five hundred sixty-eight".