667501376 has 14 divisors (see below), whose sum is σ = 1324573170. Its totient is φ = 333750656.

The previous prime is 667501339. The next prime is 667501391. The reversal of 667501376 is 673105766.

It can be written as a sum of positive squares in only one way, i.e., 458987776 + 208513600 = 21424^2 + 14440^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5214791 + ... + 5214918.

Almost surely, 2^667501376 is an apocalyptic number.

It is an amenable number.

667501376 is a deficient number, since it is larger than the sum of its proper divisors (657071794).

667501376 is a wasteful number, since it uses less digits than its factorization.

667501376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10429721 (or 10429711 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 667501376 is about 25836.0479950011. The cubic root of 667501376 is about 873.9449055612.

The spelling of 667501376 in words is "six hundred sixty-seven million, five hundred one thousand, three hundred seventy-six".