16699956984 has 96 divisors (see below), whose sum is σ = 47206832400. Its totient is φ = 5328360960.

The previous prime is 16699956967. The next prime is 16699956989. The reversal of 16699956984 is 48965999661.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16699956989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103087 + ... + 209825.

Almost surely, 2^16699956984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16699956984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23603416200).

16699956984 is an abundant number, since it is smaller than the sum of its proper divisors (30506875416).

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

16699956984 is a wasteful number, since it uses less digits than its factorization.

16699956984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106845 (or 106838 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 72.

The spelling of 16699956984 in words is "sixteen billion, six hundred ninety-nine million, nine hundred fifty-six thousand, nine hundred eighty-four".