22454144652 has 48 divisors (see below), whose sum is σ = 53571071232. Its totient is φ = 7317890880.

The previous prime is 22454144639. The next prime is 22454144659. The reversal of 22454144652 is 25644145422.

It is a super-2 number, since 2×22454144652² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22454144652.

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 15 ways as a sum of consecutive naturals, for example, 30403 + ... + 214085.

It is an arithmetic number, because the mean of its divisors is an integer number (1116063984).

Almost surely, 2^22454144652 is an apocalyptic number.

It is an amenable number.

22454144652 is an abundant number, since it is smaller than the sum of its proper divisors (31116926580).

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

22454144652 is a wasteful number, since it uses less digits than its factorization.

22454144652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183918 (or 183916 counting only the distinct ones).

The product of its digits is 307200, while the sum is 39.

The spelling of 22454144652 in words is "twenty-two billion, four hundred fifty-four million, one hundred forty-four thousand, six hundred fifty-two".