667586052 has 72 divisors (see below), whose sum is σ = 2030100800. Its totient is φ = 180698688.

The previous prime is 667586047. The next prime is 667586083. The reversal of 667586052 is 250685766.

667586052 is a `hidden beast` number, since 6 + 67 + 586 + 0 + 5 + 2 = 666.

It is a super-2 number, since 2×667586052² = 891342273649893408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 667585989 and 667586007.

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 23 ways as a sum of consecutive naturals, for example, 64927 + ... + 74502.

Almost surely, 2^667586052 is an apocalyptic number.

It is an amenable number.

667586052 is an abundant number, since it is smaller than the sum of its proper divisors (1362514748).

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

667586052 is a wasteful number, since it uses less digits than its factorization.

667586052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139465 (or 139460 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 667586052 is about 25837.6866611545. The cubic root of 667586052 is about 873.9818588083.

The spelling of 667586052 in words is "six hundred sixty-seven million, five hundred eighty-six thousand, fifty-two".