2167651122245 has 72 divisors (see below), whose sum is σ = 3114046166616. Its totient is φ = 1444241498112.

The previous prime is 2167651122179. The next prime is 2167651122253. The reversal of 2167651122245 is 5422211567612.

It can be written as a sum of positive squares in 4 ways, for example, as 503329234849 + 1664321887396 = 709457^2 + 1290086^2 .

It is not a de Polignac number, because 2167651122245 - 2²⁰ = 2167650073669 is a prime.

It is a super-2 number, since 2×2167651122245² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2167651122196 and 2167651122205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 87417569 + ... + 87442361.

It is an arithmetic number, because the mean of its divisors is an integer number (43250641203).

Almost surely, 2^{2167651122245} is an apocalyptic number.

It is an amenable number.

2167651122245 is a deficient number, since it is larger than the sum of its proper divisors (946395044371).

2167651122245 is a wasteful number, since it uses less digits than its factorization.

2167651122245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25091 (or 25041 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

Adding to 2167651122245 its reverse (5422211567612), we get a palindrome (7589862689857).

The spelling of 2167651122245 in words is "two trillion, one hundred sixty-seven billion, six hundred fifty-one million, one hundred twenty-two thousand, two hundred forty-five".