667340770 has 32 divisors (see below), whose sum is σ = 1221591168. Its totient is φ = 262424448.

The previous prime is 667340767. The next prime is 667340771. The reversal of 667340770 is 77043766.

It is not an unprimeable number, because it can be changed into a prime (667340771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627259 + ... + 628321.

It is an arithmetic number, because the mean of its divisors is an integer number (38174724).

Almost surely, 2^667340770 is an apocalyptic number.

667340770 is a deficient number, since it is larger than the sum of its proper divisors (554250398).

667340770 is a wasteful number, since it uses less digits than its factorization.

667340770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 667340770 is about 25832.9396314086. The cubic root of 667340770 is about 873.8748073015.

The spelling of 667340770 in words is "six hundred sixty-seven million, three hundred forty thousand, seven hundred seventy".