22495447412 has 18 divisors (see below), whose sum is σ = 40113701334. Its totient is φ = 11034431200.

The previous prime is 22495447391. The next prime is 22495447439. The reversal of 22495447412 is 21474459422.

It can be written as a sum of positive squares in 3 ways, for example, as 17777955556 + 4717491856 = 133334^2 + 68684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2178662 + ... + 2188962.

It is an arithmetic number, because the mean of its divisors is an integer number (2228538963).

Almost surely, 2^22495447412 is an apocalyptic number.

It is an amenable number.

22495447412 is a deficient number, since it is larger than the sum of its proper divisors (17618253922).

22495447412 is an frugal number, since it uses more digits than its factorization.

22495447412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20659 (or 10356 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The spelling of 22495447412 in words is "twenty-two billion, four hundred ninety-five million, four hundred forty-seven thousand, four hundred twelve".