16699559040 has 384 divisors, whose sum is σ = 61016155200. Its totient is φ = 4196966400.

The previous prime is 16699559033. The next prime is 16699559083. The reversal of 16699559040 is 4095599661.

16699559040 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 9 + 5 + 590 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36224410 + ... + 36224870.

Almost surely, 2^16699559040 is an apocalyptic number.

16699559040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16699559040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30508077600).

16699559040 is an abundant number, since it is smaller than the sum of its proper divisors (44316596160).

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

16699559040 is a wasteful number, since it uses less digits than its factorization.

16699559040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 16699559040 in words is "sixteen billion, six hundred ninety-nine million, five hundred fifty-nine thousand, forty".