16259477455872 has 528 divisors, whose sum is σ = 56932929987840. Its totient is φ = 4569384960000.

The previous prime is 16259477455843. The next prime is 16259477455877. The reversal of 16259477455872 is 27855477495261.

16259477455872 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 94 + 7 + 7 + 455 + 87 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 16259477455872.

It is not an unprimeable number, because it can be changed into a prime (16259477455877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82541497 + ... + 82738247.

Almost surely, 2^{16259477455872} is an apocalyptic number.

16259477455872 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 16259477455872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28466464993920).

16259477455872 is an abundant number, since it is smaller than the sum of its proper divisors (40673452531968).

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

16259477455872 is a wasteful number, since it uses less digits than its factorization.

16259477455872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196855 (or 196824 counting only the distinct ones).

The product of its digits is 1185408000, while the sum is 72.

The spelling of 16259477455872 in words is "sixteen trillion, two hundred fifty-nine billion, four hundred seventy-seven million, four hundred fifty-five thousand, eight hundred seventy-two".