667056364 has 12 divisors (see below), whose sum is σ = 1257144784. Its totient is φ = 307872144.

The previous prime is 667056337. The next prime is 667056367. The reversal of 667056364 is 463650766.

It is a self number, because there is not a number n which added to its sum of digits gives 667056364.

It is not an unprimeable number, because it can be changed into a prime (667056367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413952 + ... + 6414055.

Almost surely, 2^667056364 is an apocalyptic number.

It is an amenable number.

667056364 is a deficient number, since it is larger than the sum of its proper divisors (590088420).

667056364 is a wasteful number, since it uses less digits than its factorization.

667056364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828024 (or 12828022 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The square root of 667056364 is about 25827.4343286359. The cubic root of 667056364 is about 873.7506475695.

The spelling of 667056364 in words is "six hundred sixty-seven million, fifty-six thousand, three hundred sixty-four".