2160918523 has 4 divisors (see below), whose sum is σ = 2161999368. Its totient is φ = 2159837680.

The previous prime is 2160918503. The next prime is 2160918553. The reversal of 2160918523 is 3258190612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2160918523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160918503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537418 + ... + 541423.

It is an arithmetic number, because the mean of its divisors is an integer number (540499842).

Almost surely, 2^2160918523 is an apocalyptic number.

2160918523 is a deficient number, since it is larger than the sum of its proper divisors (1080845).

2160918523 is a wasteful number, since it uses less digits than its factorization.

2160918523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080844.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2160918523 is about 46485.6808382969. The cubic root of 2160918523 is about 1292.8440193319.

The spelling of 2160918523 in words is "two billion, one hundred sixty million, nine hundred eighteen thousand, five hundred twenty-three".