22452477017672 has 128 divisors (see below), whose sum is σ = 48210181810560. Its totient is φ = 9711164928000.

The previous prime is 22452477017603. The next prime is 22452477017683. The reversal of 22452477017672 is 27671077425422.

It is a super-2 number, since 2×22452477017672² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1900652438 + ... + 1900664250.

It is an arithmetic number, because the mean of its divisors is an integer number (376642045395).

Almost surely, 2^{22452477017672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22452477017672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24105090905280).

22452477017672 is an abundant number, since it is smaller than the sum of its proper divisors (25757704792888).

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

22452477017672 is a wasteful number, since it uses less digits than its factorization.

22452477017672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16383 (or 16379 counting only the distinct ones).

The product of its (nonzero) digits is 18439680, while the sum is 56.

The spelling of 22452477017672 in words is "twenty-two trillion, four hundred fifty-two billion, four hundred seventy-seven million, seventeen thousand, six hundred seventy-two".