16997964156 has 96 divisors (see below), whose sum is σ = 45156742400. Its totient is φ = 5526480960.

The previous prime is 16997964143. The next prime is 16997964157. The reversal of 16997964156 is 65146979961.

It is a junction number, because it is equal to n+sod(n) for n = 16997964093 and 16997964102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16997964157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3987066 + ... + 3991326.

Almost surely, 2^16997964156 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 16997964156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22578371200).

16997964156 is an abundant number, since it is smaller than the sum of its proper divisors (28158778244).

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

16997964156 is a wasteful number, since it uses less digits than its factorization.

16997964156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176 (or 5168 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The spelling of 16997964156 in words is "sixteen billion, nine hundred ninety-seven million, nine hundred sixty-four thousand, one hundred fifty-six".