2100990160 has 40 divisors (see below), whose sum is σ = 4892472576. Its totient is φ = 839076480.

The previous prime is 2100990139. The next prime is 2100990161. The reversal of 2100990160 is 610990012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100990161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31465 + ... + 72055.

Almost surely, 2^2100990160 is an apocalyptic number.

2100990160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100990160 is an abundant number, since it is smaller than the sum of its proper divisors (2791482416).

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

2100990160 is a wasteful number, since it uses less digits than its factorization.

2100990160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41251 (or 41245 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2100990160 is about 45836.5592076892. The cubic root of 2100990160 is about 1280.7803997545.

The spelling of 2100990160 in words is "two billion, one hundred million, nine hundred ninety thousand, one hundred sixty".