185980164 has 12 divisors (see below), whose sum is σ = 433953744. Its totient is φ = 61993384.

The previous prime is 185980147. The next prime is 185980183. The reversal of 185980164 is 461089581.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7749162 + ... + 7749185.

It is an arithmetic number, because the mean of its divisors is an integer number (36162812).

Almost surely, 2^185980164 is an apocalyptic number.

It is an amenable number.

185980164 is an abundant number, since it is smaller than the sum of its proper divisors (247973580).

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

185980164 is a wasteful number, since it uses less digits than its factorization.

185980164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498354 (or 15498352 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 185980164 is about 13637.4544545527. The cubic root of 185980164 is about 570.8064546469.

The spelling of 185980164 in words is "one hundred eighty-five million, nine hundred eighty thousand, one hundred sixty-four".