16171968998 has 8 divisors (see below), whose sum is σ = 25684891992. Its totient is φ = 7610338336.

The previous prime is 16171968977. The next prime is 16171969019. The reversal of 16171968998 is 89986917161.

It is an interprime number because it is at equal distance from previous prime (16171968977) and next prime (16171969019).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237823040 + ... + 237823107.

It is an arithmetic number, because the mean of its divisors is an integer number (3210611499).

Almost surely, 2^16171968998 is an apocalyptic number.

16171968998 is a deficient number, since it is larger than the sum of its proper divisors (9512922994).

16171968998 is a wasteful number, since it uses less digits than its factorization.

16171968998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475646166.

The product of its digits is 11757312, while the sum is 65.

The spelling of 16171968998 in words is "sixteen billion, one hundred seventy-one million, nine hundred sixty-eight thousand, nine hundred ninety-eight".