22991656998 has 8 divisors (see below), whose sum is σ = 45983314008. Its totient is φ = 7663885664.

The previous prime is 22991656991. The next prime is 22991657033. The reversal of 22991656998 is 89965619922.

It is a sphenic number, since it is the product of 3 distinct primes.

22991656998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22991656991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915971411 + ... + 1915971422.

It is an arithmetic number, because the mean of its divisors is an integer number (5747914251).

Almost surely, 2^22991656998 is an apocalyptic number.

22991656998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22991656998 is a wasteful number, since it uses less digits than its factorization.

22991656998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831942838.

The product of its digits is 37791360, while the sum is 66.

The spelling of 22991656998 in words is "twenty-two billion, nine hundred ninety-one million, six hundred fifty-six thousand, nine hundred ninety-eight".