166512716 has 6 divisors (see below), whose sum is σ = 291397260. Its totient is φ = 83256356.

The previous prime is 166512707. The next prime is 166512721. The reversal of 166512716 is 617215661.

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 as a sum of consecutive naturals, namely, 20814086 + ... + 20814093.

It is an arithmetic number, because the mean of its divisors is an integer number (48566210).

Almost surely, 2^166512716 is an apocalyptic number.

It is an amenable number.

166512716 is a deficient number, since it is larger than the sum of its proper divisors (124884544).

166512716 is a wasteful number, since it uses less digits than its factorization.

166512716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41628183 (or 41628181 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 166512716 is about 12903.9806261479. The cubic root of 166512716 is about 550.1517113163.

The spelling of 166512716 in words is "one hundred sixty-six million, five hundred twelve thousand, seven hundred sixteen".