22585417990 has 32 divisors (see below), whose sum is σ = 42802272000. Its totient is φ = 8556915168.

The previous prime is 22585417961. The next prime is 22585417991. The reversal of 22585417990 is 9971458522.

It is a super-2 number, since 2×22585417990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22585417991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248631 + ... + 1266589.

It is an arithmetic number, because the mean of its divisors is an integer number (1337571000).

Almost surely, 2^22585417990 is an apocalyptic number.

22585417990 is a deficient number, since it is larger than the sum of its proper divisors (20216854010).

22585417990 is a wasteful number, since it uses less digits than its factorization.

22585417990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24604.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 22585417990 in words is "twenty-two billion, five hundred eighty-five million, four hundred seventeen thousand, nine hundred ninety".