22640978580 has 96 divisors (see below), whose sum is σ = 71027107200. Its totient is φ = 5340372480.

The previous prime is 22640978561. The next prime is 22640978593. The reversal of 22640978580 is 8587904622.

It is a super-3 number, since 3×22640978580³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439155 + ... + 487994.

It is an arithmetic number, because the mean of its divisors is an integer number (739865700).

Almost surely, 2^22640978580 is an apocalyptic number.

22640978580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22640978580 is an abundant number, since it is smaller than the sum of its proper divisors (48386128620).

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

22640978580 is a wasteful number, since it uses less digits than its factorization.

22640978580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927209 (or 927207 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 22640978580 in words is "twenty-two billion, six hundred forty million, nine hundred seventy-eight thousand, five hundred eighty".