667420406304 has 48 divisors (see below), whose sum is σ = 1756675654272. Its totient is φ = 221877013248.

The previous prime is 667420406297. The next prime is 667420406311. The reversal of 667420406304 is 403604024766.

It is an interprime number because it is at equal distance from previous prime (667420406297) and next prime (667420406311).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9283624 + ... + 9355239.

It is an arithmetic number, because the mean of its divisors is an integer number (36597409464).

Almost surely, 2^667420406304 is an apocalyptic number.

It is an amenable number.

667420406304 is an abundant number, since it is smaller than the sum of its proper divisors (1089255247968).

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

667420406304 is a wasteful number, since it uses less digits than its factorization.

667420406304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18639249 (or 18639241 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 667420406304 in words is "six hundred sixty-seven billion, four hundred twenty million, four hundred six thousand, three hundred four".