667045065 has 96 divisors (see below), whose sum is σ = 1242034560. Its totient is φ = 303575040.

The previous prime is 667045051. The next prime is 667045079. The reversal of 667045065 is 560540766.

It is an interprime number because it is at equal distance from previous prime (667045051) and next prime (667045079).

It is not a de Polignac number, because 667045065 - 2⁵ = 667045033 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10935135 + ... + 10935195.

It is an arithmetic number, because the mean of its divisors is an integer number (12937860).

Almost surely, 2^667045065 is an apocalyptic number.

It is an amenable number.

667045065 is a deficient number, since it is larger than the sum of its proper divisors (574989495).

667045065 is a wasteful number, since it uses less digits than its factorization.

667045065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 667045065 is about 25827.2155874380. The cubic root of 667045065 is about 873.7457141711.

The spelling of 667045065 in words is "six hundred sixty-seven million, forty-five thousand, sixty-five".