667765046 has 16 divisors (see below), whose sum is σ = 1091697264. Its totient is φ = 304485024.

The previous prime is 667764971. The next prime is 667765057. The reversal of 667765046 is 640567766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152561 + ... + 156876.

It is an arithmetic number, because the mean of its divisors is an integer number (68231079).

Almost surely, 2^667765046 is an apocalyptic number.

667765046 is a deficient number, since it is larger than the sum of its proper divisors (423932218).

667765046 is a wasteful number, since it uses less digits than its factorization.

667765046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309535.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The square root of 667765046 is about 25841.1502452967. The cubic root of 667765046 is about 874.0599628615.

The spelling of 667765046 in words is "six hundred sixty-seven million, seven hundred sixty-five thousand, forty-six".