16938899712 has 144 divisors (see below), whose sum is σ = 57247370880. Its totient is φ = 4839671808.

The previous prime is 16938899651. The next prime is 16938899713. The reversal of 16938899712 is 21799883961.

16938899712 is a `hidden beast` number, since 169 + 388 + 9 + 97 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 16938899712.

It is not an unprimeable number, because it can be changed into a prime (16938899713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126663 + ... + 223430.

Almost surely, 2^16938899712 is an apocalyptic number.

16938899712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16938899712 is an abundant number, since it is smaller than the sum of its proper divisors (40308471168).

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

16938899712 is an equidigital number, since it uses as much as digits as its factorization.

16938899712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350125 (or 350105 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The spelling of 16938899712 in words is "sixteen billion, nine hundred thirty-eight million, eight hundred ninety-nine thousand, seven hundred twelve".