22046454072 has 128 divisors (see below), whose sum is σ = 66036096000. Its totient is φ = 6792180480.

The previous prime is 22046454041. The next prime is 22046454137. The reversal of 22046454072 is 27045464022.

22046454072 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 645 + 4 + 0 + 7 + 2 = 666.

It is a super-2 number, since 2×22046454072² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 102753 + ... + 233775.

It is an arithmetic number, because the mean of its divisors is an integer number (515907000).

Almost surely, 2^22046454072 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 22046454072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33018048000).

22046454072 is an abundant number, since it is smaller than the sum of its proper divisors (43989641928).

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

22046454072 is a wasteful number, since it uses less digits than its factorization.

22046454072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131098 (or 131088 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 22046454072 in words is "twenty-two billion, forty-six million, four hundred fifty-four thousand, seventy-two".