667005030664 has 32 divisors (see below), whose sum is σ = 1431682704000. Its totient is φ = 285382056960.

The previous prime is 667005030557. The next prime is 667005030701. The reversal of 667005030664 is 466030500766.

It is a self number, because there is not a number n which added to its sum of digits gives 667005030664.

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, 9908697 + ... + 9975784.

It is an arithmetic number, because the mean of its divisors is an integer number (44740084500).

Almost surely, 2^667005030664 is an apocalyptic number.

It is an amenable number.

667005030664 is an abundant number, since it is smaller than the sum of its proper divisors (764677673336).

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

667005030664 is a wasteful number, since it uses less digits than its factorization.

667005030664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19885093 (or 19885089 counting only the distinct ones).

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

The spelling of 667005030664 in words is "six hundred sixty-seven billion, five million, thirty thousand, six hundred sixty-four".