667651804732 has 24 divisors (see below), whose sum is σ = 1274628724992. Its totient is φ = 303473156400.

The previous prime is 667651804681. The next prime is 667651804747. The reversal of 667651804732 is 237408156766.

667651804732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 5030173 + ... + 5161195.

It is an arithmetic number, because the mean of its divisors is an integer number (53109530208).

Almost surely, 2^667651804732 is an apocalyptic number.

It is an amenable number.

667651804732 is a deficient number, since it is larger than the sum of its proper divisors (606976920260).

667651804732 is a wasteful number, since it uses less digits than its factorization.

667651804732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246849 (or 246847 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 667651804732 in words is "six hundred sixty-seven billion, six hundred fifty-one million, eight hundred four thousand, seven hundred thirty-two".