16986368500 has 24 divisors (see below), whose sum is σ = 37098229896. Its totient is φ = 6794547200.

The previous prime is 16986368471. The next prime is 16986368551. The reversal of 16986368500 is 586368961.

It can be written as a sum of positive squares in 4 ways, for example, as 4484445156 + 12501923344 = 66966^2 + 111812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16985869 + ... + 16986868.

It is an arithmetic number, because the mean of its divisors is an integer number (1545759579).

Almost surely, 2^16986368500 is an apocalyptic number.

16986368500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16986368500 is an abundant number, since it is smaller than the sum of its proper divisors (20111861396).

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

16986368500 is a wasteful number, since it uses less digits than its factorization.

16986368500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33972756 (or 33972744 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 16986368500 in words is "sixteen billion, nine hundred eighty-six million, three hundred sixty-eight thousand, five hundred".