2161056892 has 12 divisors (see below), whose sum is σ = 3811628800. Its totient is φ = 1072020096.

The previous prime is 2161056869. The next prime is 2161056901. The reversal of 2161056892 is 2986501612.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 2126517 + ... + 2127532.

Almost surely, 2^2161056892 is an apocalyptic number.

It is an amenable number.

2161056892 is a deficient number, since it is larger than the sum of its proper divisors (1650571908).

2161056892 is a wasteful number, since it uses less digits than its factorization.

2161056892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254180 (or 4254178 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2161056892 is about 46487.1691114871. The cubic root of 2161056892 is about 1292.8716134181.

The spelling of 2161056892 in words is "two billion, one hundred sixty-one million, fifty-six thousand, eight hundred ninety-two".