747666655632 has 80 divisors (see below), whose sum is σ = 2311163326080. Its totient is φ = 230051276928.

The previous prime is 747666655621. The next prime is 747666655661. The reversal of 747666655632 is 236556666747.

It is a self number, because there is not a number n which added to its sum of digits gives 747666655632.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66560148 + ... + 66571379.

It is an arithmetic number, because the mean of its divisors is an integer number (28889541576).

Almost surely, 2^747666655632 is an apocalyptic number.

747666655632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

747666655632 is an abundant number, since it is smaller than the sum of its proper divisors (1563496670448).

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

747666655632 is a wasteful number, since it uses less digits than its factorization.

747666655632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133131557 (or 133131545 counting only the distinct ones).

The product of its digits is 228614400, while the sum is 63.

The spelling of 747666655632 in words is "seven hundred forty-seven billion, six hundred sixty-six million, six hundred fifty-five thousand, six hundred thirty-two".