16113631668 has 24 divisors (see below), whose sum is σ = 37829143968. Its totient is φ = 5338257696.

The previous prime is 16113631643. The next prime is 16113631693. The reversal of 16113631668 is 86613631161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16113631643) and next prime (16113631693).

It is a congruent number.

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, 4117071 + ... + 4120982.

It is an arithmetic number, because the mean of its divisors is an integer number (1576214332).

Almost surely, 2^16113631668 is an apocalyptic number.

It is an amenable number.

16113631668 is an abundant number, since it is smaller than the sum of its proper divisors (21715512300).

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

16113631668 is a wasteful number, since it uses less digits than its factorization.

16113631668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238223 (or 8238221 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The spelling of 16113631668 in words is "sixteen billion, one hundred thirteen million, six hundred thirty-one thousand, six hundred sixty-eight".