22040551512 has 96 divisors (see below), whose sum is σ = 68373396000. Its totient is φ = 6283210752.

The previous prime is 22040551501. The next prime is 22040551553. The reversal of 22040551512 is 21515504022.

22040551512 is a `hidden beast` number, since 2 + 20 + 40 + 551 + 51 + 2 = 666.

It is a super-2 number, since 2×22040551512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177598 + ... + 274994.

It is an arithmetic number, because the mean of its divisors is an integer number (712222875).

Almost surely, 2^22040551512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22040551512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34186698000).

22040551512 is an abundant number, since it is smaller than the sum of its proper divisors (46332844488).

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

22040551512 is a wasteful number, since it uses less digits than its factorization.

22040551512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97865 (or 97858 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 22040551512 in words is "twenty-two billion, forty million, five hundred fifty-one thousand, five hundred twelve".