20423014443216 has 120 divisors (see below), whose sum is σ = 71259522295104. Its totient is φ = 5304679073280.

The previous prime is 20423014443163. The next prime is 20423014443217. The reversal of 20423014443216 is 61234441032402.

20423014443216 is a `hidden beast` number, since 2 + 0 + 42 + 30 + 144 + 432 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423014443217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920940141 + ... + 920962316.

Almost surely, 2^{20423014443216} is an apocalyptic number.

It is an amenable number.

20423014443216 is an abundant number, since it is smaller than the sum of its proper divisors (50836507851888).

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

20423014443216 is a wasteful number, since it uses less digits than its factorization.

20423014443216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841902489 (or 1841902480 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 20423014443216 its reverse (61234441032402), we get a palindrome (81657455475618).

The spelling of 20423014443216 in words is "twenty trillion, four hundred twenty-three billion, fourteen million, four hundred forty-three thousand, two hundred sixteen".