20846216670144 has 112 divisors (see below), whose sum is σ = 57577705113600. Its totient is φ = 6643845852160.

The previous prime is 20846216670067. The next prime is 20846216670173. The reversal of 20846216670144 is 44107661264802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9610114 + ... + 11577854.

It is an arithmetic number, because the mean of its divisors is an integer number (514086652800).

Almost surely, 2^{20846216670144} is an apocalyptic number.

20846216670144 is a gapful number since it is divisible by the number (24) 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 20846216670144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28788852556800).

20846216670144 is an abundant number, since it is smaller than the sum of its proper divisors (36731488443456).

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

20846216670144 is a wasteful number, since it uses less digits than its factorization.

20846216670144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970178 (or 1970168 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 20846216670144 in words is "twenty trillion, eight hundred forty-six billion, two hundred sixteen million, six hundred seventy thousand, one hundred forty-four".