166015516 has 12 divisors (see below), whose sum is σ = 290727640. Its totient is φ = 82950480.

The previous prime is 166015477. The next prime is 166015583. The reversal of 166015516 is 615510661.

It is a super-2 number, since 2×166015516² = 55122303105492512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7431 + ... + 19678.

Almost surely, 2^166015516 is an apocalyptic number.

It is an amenable number.

166015516 is a deficient number, since it is larger than the sum of its proper divisors (124712124).

166015516 is a wasteful number, since it uses less digits than its factorization.

166015516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28644 (or 28642 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 166015516 is about 12884.7008502332. The cubic root of 166015516 is about 549.6035887363.

The spelling of 166015516 in words is "one hundred sixty-six million, fifteen thousand, five hundred sixteen".