2153418664 has 16 divisors (see below), whose sum is σ = 4176890100. Its totient is φ = 1039581312.

The previous prime is 2153418643. The next prime is 2153418697. The reversal of 2153418664 is 4668143512.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2139802564 + 13616100 = 46258^2 + 3690^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4640757 + ... + 4641220.

Almost surely, 2^2153418664 is an apocalyptic number.

It is an amenable number.

2153418664 is a deficient number, since it is larger than the sum of its proper divisors (2023471436).

2153418664 is a wasteful number, since it uses less digits than its factorization.

2153418664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9282012 (or 9282008 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 2153418664 is about 46404.9422367920. The cubic root of 2153418664 is about 1291.3466025556.

The spelling of 2153418664 in words is "two billion, one hundred fifty-three million, four hundred eighteen thousand, six hundred sixty-four".