16911178992 has 30 divisors (see below), whose sum is σ = 47327813832. Its totient is φ = 5637059616.

The previous prime is 16911178981. The next prime is 16911179009. The reversal of 16911178992 is 29987111961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58719228 + ... + 58719515.

Almost surely, 2^16911178992 is an apocalyptic number.

16911178992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16911178992 is an abundant number, since it is smaller than the sum of its proper divisors (30416634840).

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

16911178992 is a wasteful number, since it uses less digits than its factorization.

16911178992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117438757 (or 117438748 counting only the distinct ones).

The product of its digits is 489888, while the sum is 54.

The spelling of 16911178992 in words is "sixteen billion, nine hundred eleven million, one hundred seventy-eight thousand, nine hundred ninety-two".