2161292504 has 32 divisors (see below), whose sum is σ = 4642444800. Its totient is φ = 924047520.

The previous prime is 2161292461. The next prime is 2161292521. The reversal of 2161292504 is 4052921612.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22592 + ... + 69519.

It is an arithmetic number, because the mean of its divisors is an integer number (145076400).

Almost surely, 2^2161292504 is an apocalyptic number.

It is an amenable number.

2161292504 is an abundant number, since it is smaller than the sum of its proper divisors (2481152296).

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

2161292504 is a wasteful number, since it uses less digits than its factorization.

2161292504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92543 (or 92539 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2161292504 is about 46489.7032040429. The cubic root of 2161292504 is about 1292.9185973727.

The spelling of 2161292504 in words is "two billion, one hundred sixty-one million, two hundred ninety-two thousand, five hundred four".