22611809142 has 96 divisors (see below), whose sum is σ = 55587168000. Its totient is φ = 6585437376.

The previous prime is 22611809137. The next prime is 22611809159. The reversal of 22611809142 is 24190811622.

22611809142 is a `hidden beast` number, since 22 + 611 + 8 + 0 + 9 + 14 + 2 = 666.

It is a super-2 number, since 2×22611809142² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22611809097 and 22611809106.

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, 9330943 + ... + 9333365.

It is an arithmetic number, because the mean of its divisors is an integer number (579033000).

Almost surely, 2^22611809142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22611809142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27793584000).

22611809142 is an abundant number, since it is smaller than the sum of its proper divisors (32975358858).

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

22611809142 is a wasteful number, since it uses less digits than its factorization.

22611809142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 22611809142 in words is "twenty-two billion, six hundred eleven million, eight hundred nine thousand, one hundred forty-two".