166516606406512 has 40 divisors (see below), whose sum is σ = 325644503636592. Its totient is φ = 82479331315200.

The previous prime is 166516606406503. The next prime is 166516606406519. The reversal of 166516606406512 is 215604606615661.

166516606406512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166516606406512² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166516606406519) 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, 184001212 + ... + 184903972.

Almost surely, 2^{166516606406512} is an apocalyptic number.

It is an amenable number.

166516606406512 is a deficient number, since it is larger than the sum of its proper divisors (159127897230080).

166516606406512 is a wasteful number, since it uses less digits than its factorization.

166516606406512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010617 (or 1010611 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 166516606406512 in words is "one hundred sixty-six trillion, five hundred sixteen billion, six hundred six million, four hundred six thousand, five hundred twelve".