667536460 has 24 divisors (see below), whose sum is σ = 1404539136. Its totient is φ = 266497920.

The previous prime is 667536449. The next prime is 667536469. The reversal of 667536460 is 64635766.

667536460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (667536469) 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, 21612 + ... + 42451.

It is an arithmetic number, because the mean of its divisors is an integer number (58522464).

Almost surely, 2^667536460 is an apocalyptic number.

It is an amenable number.

667536460 is an abundant number, since it is smaller than the sum of its proper divisors (737002676).

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

667536460 is a wasteful number, since it uses less digits than its factorization.

667536460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64593 (or 64591 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The square root of 667536460 is about 25836.7269598918. The cubic root of 667536460 is about 873.9602168634.

The spelling of 667536460 in words is "six hundred sixty-seven million, five hundred thirty-six thousand, four hundred sixty".