2161062560 has 24 divisors (see below), whose sum is σ = 5105510676. Its totient is φ = 864424960.

The previous prime is 2161062557. The next prime is 2161062577. The reversal of 2161062560 is 652601612.

It can be written as a sum of positive squares in 2 ways, for example, as 2160762256 + 300304 = 46484^2 + 548^2 .

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, 6753161 + ... + 6753480.

Almost surely, 2^2161062560 is an apocalyptic number.

2161062560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2161062560 is an abundant number, since it is smaller than the sum of its proper divisors (2944448116).

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

2161062560 is a wasteful number, since it uses less digits than its factorization.

2161062560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506656 (or 13506648 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2161062560 is about 46487.2300745054. The cubic root of 2161062560 is about 1292.8727437276.

The spelling of 2161062560 in words is "two billion, one hundred sixty-one million, sixty-two thousand, five hundred sixty".