22454144650 has 72 divisors (see below), whose sum is σ = 50258887020. Its totient is φ = 7433072640.

The previous prime is 22454144639. The next prime is 22454144659. The reversal of 22454144650 is 5644145422.

It can be written as a sum of positive squares in 6 ways, for example, as 9273497401 + 13180647249 = 96299^2 + 114807^2 .

It is a super-2 number, since 2×22454144650² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22454144659) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86967 + ... + 229066.

Almost surely, 2^22454144650 is an apocalyptic number.

22454144650 is an abundant number, since it is smaller than the sum of its proper divisors (27804742370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22454144650 is a wasteful number, since it uses less digits than its factorization.

22454144650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316088 (or 316076 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 22454144650 in words is "twenty-two billion, four hundred fifty-four million, one hundred forty-four thousand, six hundred fifty".