166616087564328 has 64 divisors (see below), whose sum is σ = 419540719987200. Its totient is φ = 55138636301760.

The previous prime is 166616087564323. The next prime is 166616087564359. The reversal of 166616087564328 is 823465780616661.

It is not an unprimeable number, because it can be changed into a prime (166616087564323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628913733 + ... + 629178603.

It is an arithmetic number, because the mean of its divisors is an integer number (6555323749800).

Almost surely, 2^{166616087564328} is an apocalyptic number.

It is an amenable number.

166616087564328 is an abundant number, since it is smaller than the sum of its proper divisors (252924632422872).

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

166616087564328 is a wasteful number, since it uses less digits than its factorization.

166616087564328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453582 (or 453578 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 69.

The spelling of 166616087564328 in words is "one hundred sixty-six trillion, six hundred sixteen billion, eighty-seven million, five hundred sixty-four thousand, three hundred twenty-eight".