667668110552 has 32 divisors (see below), whose sum is σ = 1264364521200. Its totient is φ = 330504720000.

The previous prime is 667668110533. The next prime is 667668110617. The reversal of 667668110552 is 255011866766.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 667668110494 and 667668110503.

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, 17165927 + ... + 17204777.

Almost surely, 2^667668110552 is an apocalyptic number.

It is an amenable number.

667668110552 is a deficient number, since it is larger than the sum of its proper divisors (596696410648).

667668110552 is a wasteful number, since it uses less digits than its factorization.

667668110552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60227 (or 60223 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 667668110552 in words is "six hundred sixty-seven billion, six hundred sixty-eight million, one hundred ten thousand, five hundred fifty-two".