667346460 has 72 divisors (see below), whose sum is σ = 2053905168. Its totient is φ = 161779200.

The previous prime is 667346447. The next prime is 667346497. The reversal of 667346460 is 64643766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38701 + ... + 53220.

Almost surely, 2^667346460 is an apocalyptic number.

667346460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667346460 is an abundant number, since it is smaller than the sum of its proper divisors (1386558708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667346460 is a wasteful number, since it uses less digits than its factorization.

667346460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91955 (or 91942 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The square root of 667346460 is about 25833.0497618845. The cubic root of 667346460 is about 873.8772909569.

The spelling of 667346460 in words is "six hundred sixty-seven million, three hundred forty-six thousand, four hundred sixty".