16993619712 has 216 divisors, whose sum is σ = 49876706880. Its totient is φ = 5563883520.

The previous prime is 16993619707. The next prime is 16993619729. The reversal of 16993619712 is 21791639961.

16993619712 is a `hidden beast` number, since 1 + 6 + 9 + 9 + 3 + 619 + 7 + 12 = 666.

It is a super-2 number, since 2×16993619712² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39428137 + ... + 39428567.

It is an arithmetic number, because the mean of its divisors is an integer number (230910680).

Almost surely, 2^16993619712 is an apocalyptic number.

16993619712 is a gapful number since it is divisible by the number (12) 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 16993619712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24938353440).

16993619712 is an abundant number, since it is smaller than the sum of its proper divisors (32883087168).

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

16993619712 is a wasteful number, since it uses less digits than its factorization.

16993619712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 702 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The spelling of 16993619712 in words is "sixteen billion, nine hundred ninety-three million, six hundred nineteen thousand, seven hundred twelve".