2122662511645 has 96 divisors (see below), whose sum is σ = 2943577428480. Its totient is φ = 1463667978240.

The previous prime is 2122662511601. The next prime is 2122662511699. The reversal of 2122662511645 is 5461152662212.

It is a happy number.

It is not a de Polignac number, because 2122662511645 - 2⁹ = 2122662511133 is a prime.

It is a super-2 number, since 2×2122662511645² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1047193122 + ... + 1047195148.

It is an arithmetic number, because the mean of its divisors is an integer number (30662264880).

Almost surely, 2^{2122662511645} is an apocalyptic number.

It is an amenable number.

2122662511645 is a deficient number, since it is larger than the sum of its proper divisors (820914916835).

2122662511645 is a wasteful number, since it uses less digits than its factorization.

2122662511645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615 (or 2602 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 2122662511645 in words is "two trillion, one hundred twenty-two billion, six hundred sixty-two million, five hundred eleven thousand, six hundred forty-five".