22647263156 has 72 divisors (see below), whose sum is σ = 48489186816. Its totient is φ = 9215519040.

The previous prime is 22647263153. The next prime is 22647263183. The reversal of 22647263156 is 65136274622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22647263153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286865 + ... + 357191.

It is an arithmetic number, because the mean of its divisors is an integer number (673460928).

Almost surely, 2^22647263156 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 22647263156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24244593408).

22647263156 is an abundant number, since it is smaller than the sum of its proper divisors (25841923660).

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

22647263156 is a wasteful number, since it uses less digits than its factorization.

22647263156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70429 (or 70420 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The spelling of 22647263156 in words is "twenty-two billion, six hundred forty-seven million, two hundred sixty-three thousand, one hundred fifty-six".