2660061632 has 56 divisors (see below), whose sum is σ = 5522610240. Its totient is φ = 1269923840.

The previous prime is 2660061629. The next prime is 2660061641. The reversal of 2660061632 is 2361600662.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 112544 + ... + 134112.

It is an arithmetic number, because the mean of its divisors is an integer number (98618040).

Almost surely, 2^2660061632 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 2660061632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2761305120).

2660061632 is an abundant number, since it is smaller than the sum of its proper divisors (2862548608).

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

2660061632 is a wasteful number, since it uses less digits than its factorization.

2660061632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21669 (or 21659 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 2660061632 is about 51575.7853260617. The cubic root of 2660061632 is about 1385.5766833064.

The spelling of 2660061632 in words is "two billion, six hundred sixty million, sixty-one thousand, six hundred thirty-two".