22615598736 has 80 divisors (see below), whose sum is σ = 65089643520. Its totient is φ = 7518268800.

The previous prime is 22615598701. The next prime is 22615598767. The reversal of 22615598736 is 63789551622.

22615598736 is a `hidden beast` number, since 2 + 2 + 6 + 1 + 559 + 87 + 3 + 6 = 666.

It is a super-2 number, since 2×22615598736² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90961 + ... + 231311.

It is an arithmetic number, because the mean of its divisors is an integer number (813620544).

Almost surely, 2^22615598736 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 22615598736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32544821760).

22615598736 is an abundant number, since it is smaller than the sum of its proper divisors (42474044784).

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

22615598736 is a wasteful number, since it uses less digits than its factorization.

22615598736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140741 (or 140729 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 22615598736 in words is "twenty-two billion, six hundred fifteen million, five hundred ninety-eight thousand, seven hundred thirty-six".