2115766160 has 20 divisors (see below), whose sum is σ = 4919156508. Its totient is φ = 846306432.

The previous prime is 2115766139. The next prime is 2115766187. The reversal of 2115766160 is 616675112.

It can be written as a sum of positive squares in 2 ways, for example, as 978188176 + 1137577984 = 31276^2 + 33728^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2115766160² = 8952932887602291200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2115766160.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13223459 + ... + 13223618.

Almost surely, 2^2115766160 is an apocalyptic number.

2115766160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115766160 is an abundant number, since it is smaller than the sum of its proper divisors (2803390348).

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

2115766160 is a wasteful number, since it uses less digits than its factorization.

2115766160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26447090 (or 26447084 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2115766160 is about 45997.4581906435. The cubic root of 2115766160 is about 1283.7759109197.

The spelling of 2115766160 in words is "two billion, one hundred fifteen million, seven hundred sixty-six thousand, one hundred sixty".