22463664520 has 96 divisors (see below), whose sum is σ = 56107076760. Its totient is φ = 8087552000.

The previous prime is 22463664491. The next prime is 22463664547. The reversal of 22463664520 is 2546636422.

It can be written as a sum of positive squares in 4 ways, for example, as 20758470084 + 1705194436 = 144078^2 + 41294^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465864 + ... + 511816.

Almost surely, 2^22463664520 is an apocalyptic number.

22463664520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22463664520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28053538380).

22463664520 is an abundant number, since it is smaller than the sum of its proper divisors (33643412240).

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

22463664520 is a wasteful number, since it uses less digits than its factorization.

22463664520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46087 (or 46072 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 22463664520 in words is "twenty-two billion, four hundred sixty-three million, six hundred sixty-four thousand, five hundred twenty".