32961598640 has 40 divisors (see below), whose sum is σ = 76906567248. Its totient is φ = 13138041600.

The previous prime is 32961598633. The next prime is 32961598651. The reversal of 32961598640 is 4689516923.

It is a tau number, because it is divible by the number of its divisors (40).

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, 705311 + ... + 750590.

Almost surely, 2^32961598640 is an apocalyptic number.

It is an amenable number.

32961598640 is an abundant number, since it is smaller than the sum of its proper divisors (43944968608).

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

32961598640 is a wasteful number, since it uses less digits than its factorization.

32961598640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456197 (or 1456191 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 32961598640 in words is "thirty-two billion, nine hundred sixty-one million, five hundred ninety-eight thousand, six hundred forty".