22658979841 has 9 divisors (see below), whose sum is σ = 22885339113. Its totient is φ = 22434842160.

The previous prime is 22658979829. The next prime is 22658979877. The reversal of 22658979841 is 14897985622.

The square root of 22658979841 is 150529.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 553237441 + 22105742400 = 23521^2 + 148680^2 .

It is not a de Polignac number, because 22658979841 - 2¹¹ = 22658977793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22658979841.

It is not an unprimeable number, because it can be changed into a prime (22658979881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16406971 + ... + 16408351.

It is an arithmetic number, because the mean of its divisors is an integer number (2542815457).

Almost surely, 2^22658979841 is an apocalyptic number.

22658979841 is the 150529-th square number.

22658979841 is the 75265-th centered octagonal number.

It is an amenable number.

22658979841 is a deficient number, since it is larger than the sum of its proper divisors (226359272).

22658979841 is an frugal number, since it uses more digits than its factorization.

22658979841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 1490 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 61.

The spelling of 22658979841 in words is "twenty-two billion, six hundred fifty-eight million, nine hundred seventy-nine thousand, eight hundred forty-one".