32991967056 has 40 divisors (see below), whose sum is σ = 85461526144. Its totient is φ = 10967351040.

The previous prime is 32991967049. The next prime is 32991967067. The reversal of 32991967056 is 65076919923.

It is a junction number, because it is equal to n+sod(n) for n = 32991966987 and 32991967005.

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, 918805 + ... + 954036.

Almost surely, 2^32991967056 is an apocalyptic number.

It is an amenable number.

32991967056 is an abundant number, since it is smaller than the sum of its proper divisors (52469559088).

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

32991967056 is a wasteful number, since it uses less digits than its factorization.

32991967056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873219 (or 1873213 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 57.

The spelling of 32991967056 in words is "thirty-two billion, nine hundred ninety-one million, nine hundred sixty-seven thousand, fifty-six".