22616143994 has 16 divisors (see below), whose sum is σ = 34579489032. Its totient is φ = 11089835328.

The previous prime is 22616143981. The next prime is 22616144017. The reversal of 22616143994 is 49934161622.

It can be written as a sum of positive squares in 4 ways, for example, as 18255522769 + 4360621225 = 135113^2 + 66035^2 .

It is a super-2 number, since 2×22616143994² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201572 + ... + 293024.

Almost surely, 2^22616143994 is an apocalyptic number.

22616143994 is a deficient number, since it is larger than the sum of its proper divisors (11963345038).

22616143994 is a wasteful number, since it uses less digits than its factorization.

22616143994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93841.

The product of its digits is 559872, while the sum is 47.

The spelling of 22616143994 in words is "twenty-two billion, six hundred sixteen million, one hundred forty-three thousand, nine hundred ninety-four".