2351115660 has 48 divisors (see below), whose sum is σ = 6869350656. Its totient is φ = 599704512.

The previous prime is 2351115649. The next prime is 2351115667. The reversal of 2351115660 is 665111532.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2351115667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850474 + ... + 853233.

It is an arithmetic number, because the mean of its divisors is an integer number (143111472).

Almost surely, 2^2351115660 is an apocalyptic number.

2351115660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2351115660 is an abundant number, since it is smaller than the sum of its proper divisors (4518234996).

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

2351115660 is a wasteful number, since it uses less digits than its factorization.

2351115660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703742 (or 1703740 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 2351115660 is about 48488.3043630111. The cubic root of 2351115660 is about 1329.7132553104.

The spelling of 2351115660 in words is "two billion, three hundred fifty-one million, one hundred fifteen thousand, six hundred sixty".