16989371100 has 108 divisors (see below), whose sum is σ = 57348605496. Its totient is φ = 4181996160.

The previous prime is 16989371093. The next prime is 16989371129. The reversal of 16989371100 is 117398961.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 714342 + ... + 737741.

Almost surely, 2^16989371100 is an apocalyptic number.

16989371100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16989371100 is an abundant number, since it is smaller than the sum of its proper divisors (40359234396).

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

16989371100 is a wasteful number, since it uses less digits than its factorization.

16989371100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452116 (or 1452106 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 16989371100 in words is "sixteen billion, nine hundred eighty-nine million, three hundred seventy-one thousand, one hundred".