16966985472 has 324 divisors, whose sum is σ = 51716552160. Its totient is φ = 5348229120.

The previous prime is 16966985471. The next prime is 16966985489. The reversal of 16966985472 is 27458966961.

16966985472 is a `hidden beast` number, since 16 + 9 + 66 + 98 + 5 + 472 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16966985471) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 174917328 + ... + 174917424.

Almost surely, 2^16966985472 is an apocalyptic number.

16966985472 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 16966985472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25858276080).

16966985472 is an abundant number, since it is smaller than the sum of its proper divisors (34749566688).

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

16966985472 is an equidigital number, since it uses as much as digits as its factorization.

16966985472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 212 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 16966985472 in words is "sixteen billion, nine hundred sixty-six million, nine hundred eighty-five thousand, four hundred seventy-two".