68330665572 has 48 divisors (see below), whose sum is σ = 181802863872. Its totient is φ = 19788065280.

The previous prime is 68330665511. The next prime is 68330665583. The reversal of 68330665572 is 27556603386.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 12880204 + ... + 12885507.

It is an arithmetic number, because the mean of its divisors is an integer number (3787559664).

Almost surely, 2^68330665572 is an apocalyptic number.

It is an amenable number.

68330665572 is an abundant number, since it is smaller than the sum of its proper divisors (113472198300).

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

68330665572 is a wasteful number, since it uses less digits than its factorization.

68330665572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25765748 (or 25765746 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 68330665572 in words is "sixty-eight billion, three hundred thirty million, six hundred sixty-five thousand, five hundred seventy-two".