22945611690 has 32 divisors (see below), whose sum is σ = 61188298560. Its totient is φ = 6118829712.

The previous prime is 22945611607. The next prime is 22945611697. The reversal of 22945611690 is 9611654922.

22945611690 is a `hidden beast` number, since 2 + 29 + 4 + 5 + 611 + 6 + 9 + 0 = 666.

It is a super-2 number, since 2×22945611690² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22945611697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42491604 + ... + 42492143.

It is an arithmetic number, because the mean of its divisors is an integer number (1912134330).

Almost surely, 2^22945611690 is an apocalyptic number.

22945611690 is an abundant number, since it is smaller than the sum of its proper divisors (38242686870).

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

22945611690 is a wasteful number, since it uses less digits than its factorization.

22945611690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84983763 (or 84983757 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 22945611690 in words is "twenty-two billion, nine hundred forty-five million, six hundred eleven thousand, six hundred ninety".