2162574561 has 24 divisors (see below), whose sum is σ = 3377741632. Its totient is φ = 1205596800.

The previous prime is 2162574541. The next prime is 2162574577. The reversal of 2162574561 is 1654752612.

It is not a de Polignac number, because 2162574561 - 2¹³ = 2162566369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162574521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4671 + ... + 65931.

Almost surely, 2^2162574561 is an apocalyptic number.

2162574561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2162574561 is a deficient number, since it is larger than the sum of its proper divisors (1215167071).

2162574561 is an equidigital number, since it uses as much as digits as its factorization.

2162574561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61353 (or 61312 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 2162574561 is about 46503.4897722741. The cubic root of 2162574561 is about 1293.1741956141.

The spelling of 2162574561 in words is "two billion, one hundred sixty-two million, five hundred seventy-four thousand, five hundred sixty-one".