16991011101120 has 112 divisors (see below), whose sum is σ = 61653097448448. Its totient is φ = 3883659678720.

The previous prime is 16991011101019. The next prime is 16991011101137. The reversal of 16991011101120 is 2110111019961.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264205416 + ... + 1264218855.

Almost surely, 2^{16991011101120} is an apocalyptic number.

16991011101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16991011101120 is an abundant number, since it is smaller than the sum of its proper divisors (44662086347328).

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

16991011101120 is a wasteful number, since it uses less digits than its factorization.

16991011101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528424298 (or 2528424288 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 33.

The spelling of 16991011101120 in words is "sixteen trillion, nine hundred ninety-one billion, eleven million, one hundred one thousand, one hundred twenty".