2499692660 has 24 divisors (see below), whose sum is σ = 5250303240. Its totient is φ = 999696384.

The previous prime is 2499692653. The next prime is 2499692761. The reversal of 2499692660 is 662969942.

2499692660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 88096996 + 2411595664 = 9386^2 + 49108^2 .

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, 187496 + ... + 200384.

It is an arithmetic number, because the mean of its divisors is an integer number (218762635).

Almost surely, 2^2499692660 is an apocalyptic number.

2499692660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2499692660 is an abundant number, since it is smaller than the sum of its proper divisors (2750610580).

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

2499692660 is a wasteful number, since it uses less digits than its factorization.

2499692660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22595 (or 22593 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 2499692660 is about 49996.9265055363. The cubic root of 2499692660 is about 1357.1531894109.

The spelling of 2499692660 in words is "two billion, four hundred ninety-nine million, six hundred ninety-two thousand, six hundred sixty".