22651521433 has 4 divisors (see below), whose sum is σ = 22652591668. Its totient is φ = 22650451200.

The previous prime is 22651521419. The next prime is 22651521439. The reversal of 22651521433 is 33412515622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33412515622 = 2 ⋅16706257811.

It can be written as a sum of positive squares in 2 ways, for example, as 11302241344 + 11349280089 = 106312^2 + 106533^2 .

It is a cyclic number.

It is not a de Polignac number, because 22651521433 - 2³³ = 14061586841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22651521439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502716 + ... + 545917.

It is an arithmetic number, because the mean of its divisors is an integer number (5663147917).

Almost surely, 2^22651521433 is an apocalyptic number.

It is an amenable number.

22651521433 is a deficient number, since it is larger than the sum of its proper divisors (1070235).

22651521433 is a wasteful number, since it uses less digits than its factorization.

22651521433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070234.

The product of its digits is 43200, while the sum is 34.

The spelling of 22651521433 in words is "twenty-two billion, six hundred fifty-one million, five hundred twenty-one thousand, four hundred thirty-three".