22665016550 has 24 divisors (see below), whose sum is σ = 45989380152. Its totient is φ = 8241824000.

The previous prime is 22665016541. The next prime is 22665016553. The reversal of 22665016550 is 5561056622.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22665016553) 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, 20604011 + ... + 20605110.

It is an arithmetic number, because the mean of its divisors is an integer number (1916224173).

Almost surely, 2^22665016550 is an apocalyptic number.

22665016550 is an abundant number, since it is smaller than the sum of its proper divisors (23324363602).

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

22665016550 is a wasteful number, since it uses less digits than its factorization.

22665016550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41209144 (or 41209139 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 22665016550 in words is "twenty-two billion, six hundred sixty-five million, sixteen thousand, five hundred fifty".