2161350456 has 16 divisors (see below), whose sum is σ = 5403376200. Its totient is φ = 720450144.

The previous prime is 2161350439. The next prime is 2161350463. The reversal of 2161350456 is 6540531612.

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, 45028111 + ... + 45028158.

Almost surely, 2^2161350456 is an apocalyptic number.

It is an amenable number.

2161350456 is an abundant number, since it is smaller than the sum of its proper divisors (3242025744).

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

2161350456 is a wasteful number, since it uses less digits than its factorization.

2161350456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90056278 (or 90056274 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2161350456 is about 46490.3264776663. The cubic root of 2161350456 is about 1292.9301531969.

The spelling of 2161350456 in words is "two billion, one hundred sixty-one million, three hundred fifty thousand, four hundred fifty-six".