2660637632 has 56 divisors (see below), whose sum is σ = 5598926064. Its totient is φ = 1250127872.

The previous prime is 2660637619. The next prime is 2660637689. The reversal of 2660637632 is 2367360662.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660637632.

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, 898298 + ... + 901254.

Almost surely, 2^2660637632 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 2660637632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2799463032).

2660637632 is an abundant number, since it is smaller than the sum of its proper divisors (2938288432).

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

2660637632 is a wasteful number, since it uses less digits than its factorization.

2660637632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813 (or 3803 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 41.

The square root of 2660637632 is about 51581.3690396058. The cubic root of 2660637632 is about 1385.6766853216.

The spelling of 2660637632 in words is "two billion, six hundred sixty million, six hundred thirty-seven thousand, six hundred thirty-two".