32661415956 has 96 divisors (see below), whose sum is σ = 83002945536. Its totient is φ = 9936000000.

The previous prime is 32661415951. The next prime is 32661415993. The reversal of 32661415956 is 65951416623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32661415951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18134256 + ... + 18136056.

It is an arithmetic number, because the mean of its divisors is an integer number (864614016).

Almost surely, 2^32661415956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32661415956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41501472768).

32661415956 is an abundant number, since it is smaller than the sum of its proper divisors (50341529580).

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

32661415956 is a wasteful number, since it uses less digits than its factorization.

32661415956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073 (or 3071 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The spelling of 32661415956 in words is "thirty-two billion, six hundred sixty-one million, four hundred fifteen thousand, nine hundred fifty-six".