22149773584 has 45 divisors (see below), whose sum is σ = 44480718373. Its totient is φ = 10684659776.

The previous prime is 22149773579. The next prime is 22149773593. The reversal of 22149773584 is 48537794122.

The square root of 22149773584 is 148828.

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

It can be written as a sum of positive squares in only one way, i.e., 11614803984 + 10534969600 = 107772^2 + 102640^2 .

It is a super-2 number, since 2×22149773584² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17263407 + ... + 17264689.

Almost surely, 2^22149773584 is an apocalyptic number.

22149773584 is the 148828-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22149773584

22149773584 is an abundant number, since it is smaller than the sum of its proper divisors (22330944789).

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

22149773584 is an frugal number, since it uses more digits than its factorization.

22149773584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632 (or 1314 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The spelling of 22149773584 in words is "twenty-two billion, one hundred forty-nine million, seven hundred seventy-three thousand, five hundred eighty-four".