667080766 has 16 divisors (see below), whose sum is σ = 1149039360. Its totient is φ = 287259480.

The previous prime is 667080719. The next prime is 667080767.

667080766 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667080767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797526 + ... + 798361.

It is an arithmetic number, because the mean of its divisors is an integer number (71814960).

Almost surely, 2^667080766 is an apocalyptic number.

667080766 is a deficient number, since it is larger than the sum of its proper divisors (481958594).

667080766 is a wasteful number, since it uses less digits than its factorization.

667080766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595919.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 667080766 is about 25827.9067289628. The cubic root of 667080766 is about 873.7613018432.

The spelling of 667080766 in words is "six hundred sixty-seven million, eighty thousand, seven hundred sixty-six".