667257060 has 24 divisors (see below), whose sum is σ = 1868319936. Its totient is φ = 177935200.

The previous prime is 667257007. The next prime is 667257061. The reversal of 667257060 is 60752766.

It is not an unprimeable number, because it can be changed into a prime (667257061) 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, 5560416 + ... + 5560535.

It is an arithmetic number, because the mean of its divisors is an integer number (77846664).

Almost surely, 2^667257060 is an apocalyptic number.

667257060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667257060 is an abundant number, since it is smaller than the sum of its proper divisors (1201062876).

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

667257060 is a wasteful number, since it uses less digits than its factorization.

667257060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11120963 (or 11120961 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 667257060 is about 25831.3193623555. The cubic root of 667257060 is about 873.8382666902.

The spelling of 667257060 in words is "six hundred sixty-seven million, two hundred fifty-seven thousand, sixty".