22043665554 has 16 divisors (see below), whose sum is σ = 44919168192. Its totient is φ = 7209249008.

The previous prime is 22043665547. The next prime is 22043665601. The reversal of 22043665554 is 45556634022.

It is a super-2 number, since 2×22043665554² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34659534 + ... + 34660169.

It is an arithmetic number, because the mean of its divisors is an integer number (2807448012).

Almost surely, 2^22043665554 is an apocalyptic number.

22043665554 is an abundant number, since it is smaller than the sum of its proper divisors (22875502638).

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

22043665554 is a wasteful number, since it uses less digits than its factorization.

22043665554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69319761.

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 22043665554 in words is "twenty-two billion, forty-three million, six hundred sixty-five thousand, five hundred fifty-four".