2661501632 has 14 divisors (see below), whose sum is σ = 5281417428. Its totient is φ = 1330750784.

The previous prime is 2661501631. The next prime is 2661501643. The reversal of 2661501632 is 2361051662.

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

It is not an unprimeable number, because it can be changed into a prime (2661501631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20792918 + ... + 20793045.

It is an arithmetic number, because the mean of its divisors is an integer number (377244102).

Almost surely, 2^2661501632 is an apocalyptic number.

It is an amenable number.

2661501632 is a deficient number, since it is larger than the sum of its proper divisors (2619915796).

2661501632 is an equidigital number, since it uses as much as digits as its factorization.

2661501632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41585975 (or 41585965 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2661501632 is about 51589.7434767803. The cubic root of 2661501632 is about 1385.8266612862.

The spelling of 2661501632 in words is "two billion, six hundred sixty-one million, five hundred one thousand, six hundred thirty-two".