2166462513 has 6 divisors (see below), whose sum is σ = 3129334754. Its totient is φ = 1444308336.

The previous prime is 2166462469. The next prime is 2166462523. The reversal of 2166462513 is 3152646612.

2166462513 is a `hidden beast` number, since 2 + 1 + 6 + 646 + 2 + 5 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1951165584 + 215296929 = 44172^2 + 14673^2 .

It is not a de Polignac number, because 2166462513 - 2⁶ = 2166462449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166462523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120359020 + ... + 120359037.

Almost surely, 2^2166462513 is an apocalyptic number.

It is an amenable number.

2166462513 is a deficient number, since it is larger than the sum of its proper divisors (962872241).

2166462513 is a wasteful number, since it uses less digits than its factorization.

2166462513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240718063 (or 240718060 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2166462513 is about 46545.2737987435. The cubic root of 2166462513 is about 1293.9487028837.

The spelling of 2166462513 in words is "two billion, one hundred sixty-six million, four hundred sixty-two thousand, five hundred thirteen".