31816823998116 has 192 divisors, whose sum is σ = 77483582588160. Its totient is φ = 10149199872000.

The previous prime is 31816823998103. The next prime is 31816823998207. The reversal of 31816823998116 is 61189932861813.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18487404136 + ... + 18487405856.

It is an arithmetic number, because the mean of its divisors is an integer number (403560325980).

Almost surely, 2^{31816823998116} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31816823998116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38741791294080).

31816823998116 is an abundant number, since it is smaller than the sum of its proper divisors (45666758590044).

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

31816823998116 is a wasteful number, since it uses less digits than its factorization.

31816823998116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2924 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 66.

The spelling of 31816823998116 in words is "thirty-one trillion, eight hundred sixteen billion, eight hundred twenty-three million, nine hundred ninety-eight thousand, one hundred sixteen".