22615780056 has 32 divisors (see below), whose sum is σ = 56565131760. Its totient is φ = 7535169152.

The previous prime is 22615780003. The next prime is 22615780067. The reversal of 22615780056 is 65008751622.

It is a super-2 number, since 2×22615780056² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159795 + ... + 266018.

Almost surely, 2^22615780056 is an apocalyptic number.

It is an amenable number.

22615780056 is an abundant number, since it is smaller than the sum of its proper divisors (33949351704).

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

22615780056 is a wasteful number, since it uses less digits than its factorization.

22615780056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428035 (or 428031 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 22615780056 in words is "twenty-two billion, six hundred fifteen million, seven hundred eighty thousand, fifty-six".