2120886660 has 24 divisors (see below), whose sum is σ = 5938482816. Its totient is φ = 565569760.

The previous prime is 2120886659. The next prime is 2120886673. The reversal of 2120886660 is 666880212.

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, 17673996 + ... + 17674115.

It is an arithmetic number, because the mean of its divisors is an integer number (247436784).

Almost surely, 2^2120886660 is an apocalyptic number.

2120886660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120886660 is an abundant number, since it is smaller than the sum of its proper divisors (3817596156).

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

2120886660 is a wasteful number, since it uses less digits than its factorization.

2120886660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35348123 (or 35348121 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2120886660 is about 46053.0852386678. The cubic root of 2120886660 is about 1284.8107257546.

The spelling of 2120886660 in words is "two billion, one hundred twenty million, eight hundred eighty-six thousand, six hundred sixty".