16395666594516 has 768 divisors, whose sum is σ = 53581118976000. Its totient is φ = 4268026183680.

The previous prime is 16395666594493. The next prime is 16395666594539. The reversal of 16395666594516 is 61549566659361.

It is an interprime number because it is at equal distance from previous prime (16395666594493) and next prime (16395666594539).

It is a super-2 number, since 2×16395666594516² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 6265060440 + ... + 6265063056.

It is an arithmetic number, because the mean of its divisors is an integer number (69767082000).

Almost surely, 2^{16395666594516} 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 16395666594516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26790559488000).

16395666594516 is an abundant number, since it is smaller than the sum of its proper divisors (37185452381484).

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

16395666594516 is a wasteful number, since it uses less digits than its factorization.

16395666594516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269 (or 3261 counting only the distinct ones).

The product of its digits is 944784000, while the sum is 72.

The spelling of 16395666594516 in words is "sixteen trillion, three hundred ninety-five billion, six hundred sixty-six million, five hundred ninety-four thousand, five hundred sixteen".