16985896640460 has 1728 divisors, whose sum is σ = 62748548868096. Its totient is φ = 3824485632000.

The previous prime is 16985896640411. The next prime is 16985896640491. The reversal of 16985896640460 is 6404669858961.

16985896640460 is a `hidden beast` number, since 1 + 6 + 9 + 85 + 89 + 6 + 6 + 4 + 0 + 460 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 168177194410 + ... + 168177194510.

It is an arithmetic number, because the mean of its divisors is an integer number (36312817632).

Almost surely, 2^{16985896640460} is an apocalyptic number.

16985896640460 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 16985896640460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31374274434048).

16985896640460 is an abundant number, since it is smaller than the sum of its proper divisors (45762652227636).

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

16985896640460 is a wasteful number, since it uses less digits than its factorization.

16985896640460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 537477120, while the sum is 72.

The spelling of 16985896640460 in words is "sixteen trillion, nine hundred eighty-five billion, eight hundred ninety-six million, six hundred forty thousand, four hundred sixty".