22512217716 has 36 divisors (see below), whose sum is σ = 59900932000. Its totient is φ = 7109121168.

The previous prime is 22512217711. The next prime is 22512217747. The reversal of 22512217716 is 61771221522.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22512217711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16455616 + ... + 16456983.

Almost surely, 2^22512217716 is an apocalyptic number.

It is an amenable number.

22512217716 is an abundant number, since it is smaller than the sum of its proper divisors (37388714284).

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

22512217716 is a wasteful number, since it uses less digits than its factorization.

22512217716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32912628 (or 32912623 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The spelling of 22512217716 in words is "twenty-two billion, five hundred twelve million, two hundred seventeen thousand, seven hundred sixteen".