667416770 has 16 divisors (see below), whose sum is σ = 1272018168. Its totient is φ = 251262720.

The previous prime is 667416769. The next prime is 667416797. The reversal of 667416770 is 77614766.

It can be written as a sum of positive squares in 4 ways, for example, as 447280201 + 220136569 = 21149^2 + 14837^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962821 + ... + 1963160.

Almost surely, 2^667416770 is an apocalyptic number.

667416770 is a deficient number, since it is larger than the sum of its proper divisors (604601398).

667416770 is a wasteful number, since it uses less digits than its factorization.

667416770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926005.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 667416770 is about 25834.4105796900. The cubic root of 667416770 is about 873.9079797412.

The spelling of 667416770 in words is "six hundred sixty-seven million, four hundred sixteen thousand, seven hundred seventy".