667629854932 has 12 divisors (see below), whose sum is σ = 1168361710516. Its totient is φ = 333812223360.

The previous prime is 667629854897. The next prime is 667629854951. The reversal of 667629854932 is 239458926766.

667629854932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 433232505616 + 234397349316 = 658204^2 + 484146^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57669 + ... + 1156972.

Almost surely, 2^667629854932 is an apocalyptic number.

It is an amenable number.

667629854932 is a deficient number, since it is larger than the sum of its proper divisors (500731855584).

667629854932 is a wasteful number, since it uses less digits than its factorization.

667629854932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352058 (or 1352056 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 67.

The spelling of 667629854932 in words is "six hundred sixty-seven billion, six hundred twenty-nine million, eight hundred fifty-four thousand, nine hundred thirty-two".