22503816990 has 96 divisors (see below), whose sum is σ = 60145559136. Its totient is φ = 5833555200.

The previous prime is 22503816967. The next prime is 22503817009. The reversal of 22503816990 is 9961830522.

22503816990 is a `hidden beast` number, since 2 + 2 + 503 + 81 + 69 + 9 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4836165 + ... + 4840815.

It is an arithmetic number, because the mean of its divisors is an integer number (626516241).

Almost surely, 2^22503816990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22503816990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30072779568).

22503816990 is an abundant number, since it is smaller than the sum of its proper divisors (37641742146).

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

22503816990 is a wasteful number, since it uses less digits than its factorization.

22503816990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6154 (or 6151 counting only the distinct ones).

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

The spelling of 22503816990 in words is "twenty-two billion, five hundred three million, eight hundred sixteen thousand, nine hundred ninety".