16442865846 has 96 divisors (see below), whose sum is σ = 40253241600. Its totient is φ = 4805115840.

The previous prime is 16442865821. The next prime is 16442865863. The reversal of 16442865846 is 64856824461.

16442865846 is a `hidden beast` number, since 16 + 4 + 42 + 8 + 6 + 584 + 6 = 666.

It is a super-3 number, since 3×16442865846³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16442865792 and 16442865801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8307685 + ... + 8309663.

It is an arithmetic number, because the mean of its divisors is an integer number (419304600).

Almost surely, 2^16442865846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16442865846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20126620800).

16442865846 is an abundant number, since it is smaller than the sum of its proper divisors (23810375754).

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

16442865846 is a wasteful number, since it uses less digits than its factorization.

16442865846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474 (or 3471 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

It can be divided in two parts, 16442 and 865846, that added together give a palindrome (882288).

The spelling of 16442865846 in words is "sixteen billion, four hundred forty-two million, eight hundred sixty-five thousand, eight hundred forty-six".