16845990172063 has 32 divisors (see below), whose sum is σ = 18608405441472. Its totient is φ = 15154241356800.

The previous prime is 16845990172051. The next prime is 16845990172147. The reversal of 16845990172063 is 36027109954861.

16845990172063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16845990172063 - 2⁵ = 16845990172031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16845990171992 and 16845990172010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16845990172463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325683043 + ... + 325734763.

It is an arithmetic number, because the mean of its divisors is an integer number (581512670046).

It is a 1-persistent number, because it is pandigital, but 2⋅16845990172063 = 33691980344126 is not.

Almost surely, 2^{16845990172063} is an apocalyptic number.

16845990172063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16845990172063 is a deficient number, since it is larger than the sum of its proper divisors (1762415269409).

16845990172063 is a wasteful number, since it uses less digits than its factorization.

16845990172063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54955.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 16845990172063 in words is "sixteen trillion, eight hundred forty-five billion, nine hundred ninety million, one hundred seventy-two thousand, sixty-three".