667468560 has 80 divisors (see below), whose sum is σ = 2257266240. Its totient is φ = 161809920.

The previous prime is 667468559. The next prime is 667468577. The reversal of 667468560 is 65864766.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123775 + ... + 129054.

It is an arithmetic number, because the mean of its divisors is an integer number (28215828).

Almost surely, 2^667468560 is an apocalyptic number.

667468560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667468560 is an abundant number, since it is smaller than the sum of its proper divisors (1589797680).

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

667468560 is a wasteful number, since it uses less digits than its factorization.

667468560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252856 (or 252850 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The square root of 667468560 is about 25835.4129055450. The cubic root of 667468560 is about 873.9305835702.

The spelling of 667468560 in words is "six hundred sixty-seven million, four hundred sixty-eight thousand, five hundred sixty".