20712514448185 has 16 divisors (see below), whose sum is σ = 28411453230336. Its totient is φ = 14200007485248.

The previous prime is 20712514448167. The next prime is 20712514448207. The reversal of 20712514448185 is 58184441521702.

It is a cyclic number.

It is not a de Polignac number, because 20712514448185 - 2¹¹ = 20712514446137 is a prime.

It is a Duffinian 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, 59397942 + ... + 59745631.

It is an arithmetic number, because the mean of its divisors is an integer number (1775715826896).

Almost surely, 2^{20712514448185} is an apocalyptic number.

It is an amenable number.

20712514448185 is a deficient number, since it is larger than the sum of its proper divisors (7698938782151).

20712514448185 is a wasteful number, since it uses less digits than its factorization.

20712514448185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119148552.

The product of its (nonzero) digits is 2867200, while the sum is 52.

Adding to 20712514448185 its reverse (58184441521702), we get a palindrome (78896955969887).

The spelling of 20712514448185 in words is "twenty trillion, seven hundred twelve billion, five hundred fourteen million, four hundred forty-eight thousand, one hundred eighty-five".