22145234552541 has 12 divisors (see below), whose sum is σ = 32003578853532. Its totient is φ = 14756096855616.

The previous prime is 22145234552473. The next prime is 22145234552543. The reversal of 22145234552541 is 14525543254122.

22145234552541 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 52 + 3 + 4 + 5 + 52 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 200834837316 + 21944399715225 = 448146^2 + 4684485^2 .

It is not a de Polignac number, because 22145234552541 - 2³⁵ = 22110874814173 is a prime.

It is a super-2 number, since 2×22145234552541² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145234552543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616051536 + ... + 616087481.

It is an arithmetic number, because the mean of its divisors is an integer number (2666964904461).

Almost surely, 2^{22145234552541} is an apocalyptic number.

It is an amenable number.

22145234552541 is a deficient number, since it is larger than the sum of its proper divisors (9858344300991).

22145234552541 is a wasteful number, since it uses less digits than its factorization.

22145234552541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232141020 (or 1232141017 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 45.

The spelling of 22145234552541 in words is "twenty-two trillion, one hundred forty-five billion, two hundred thirty-four million, five hundred fifty-two thousand, five hundred forty-one".