16864199201612 has 96 divisors (see below), whose sum is σ = 35539809930240. Its totient is φ = 6845593201920.

The previous prime is 16864199201491. The next prime is 16864199201621. The reversal of 16864199201612 is 21610299146861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114135062 + ... + 114282722.

It is an arithmetic number, because the mean of its divisors is an integer number (370206353440).

Almost surely, 2^{16864199201612} 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 16864199201612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17769904965120).

16864199201612 is an abundant number, since it is smaller than the sum of its proper divisors (18675610728628).

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

16864199201612 is a wasteful number, since it uses less digits than its factorization.

16864199201612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149431 (or 149429 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 16864199201612 in words is "sixteen trillion, eight hundred sixty-four billion, one hundred ninety-nine million, two hundred one thousand, six hundred twelve".