2511116660 has 48 divisors (see below), whose sum is σ = 5732125056. Its totient is φ = 918506112.

The previous prime is 2511116659. The next prime is 2511116677. The reversal of 2511116660 is 666111152.

2511116660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17312 + ... + 72951.

It is an arithmetic number, because the mean of its divisors is an integer number (119419272).

Almost surely, 2^2511116660 is an apocalyptic number.

2511116660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2511116660 is an abundant number, since it is smaller than the sum of its proper divisors (3221008396).

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

2511116660 is a wasteful number, since it uses less digits than its factorization.

2511116660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90392 (or 90390 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 2511116660 is about 50111.0432938689. The cubic root of 2511116660 is about 1359.2175177305.

The spelling of 2511116660 in words is "two billion, five hundred eleven million, one hundred sixteen thousand, six hundred sixty".