2160753661 has 16 divisors (see below), whose sum is σ = 2479154688. Its totient is φ = 1865073600.

The previous prime is 2160753649. The next prime is 2160753689. The reversal of 2160753661 is 1663570612.

It is a cyclic number.

It is not a de Polignac number, because 2160753661 - 2⁵ = 2160753629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2160753661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160753611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41706 + ... + 77851.

It is an arithmetic number, because the mean of its divisors is an integer number (154947168).

Almost surely, 2^2160753661 is an apocalyptic number.

It is an amenable number.

2160753661 is a deficient number, since it is larger than the sum of its proper divisors (318401027).

2160753661 is a wasteful number, since it uses less digits than its factorization.

2160753661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119652.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2160753661 is about 46483.9075487421. The cubic root of 2160753661 is about 1292.8111403703.

The spelling of 2160753661 in words is "two billion, one hundred sixty million, seven hundred fifty-three thousand, six hundred sixty-one".