16989922500 has 60 divisors (see below), whose sum is σ = 49538105232. Its totient is φ = 4530644000.

The previous prime is 16989922483. The next prime is 16989922517. The reversal of 16989922500 is 522998961.

It is an interprime number because it is at equal distance from previous prime (16989922483) and next prime (16989922517).

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1125162 + ... + 1140161.

Almost surely, 2^16989922500 is an apocalyptic number.

16989922500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16989922500 is an abundant number, since it is smaller than the sum of its proper divisors (32548182732).

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

16989922500 is a wasteful number, since it uses less digits than its factorization.

16989922500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265350 (or 2265333 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 16989922500 in words is "sixteen billion, nine hundred eighty-nine million, nine hundred twenty-two thousand, five hundred".