20516625350166 has 64 divisors (see below), whose sum is σ = 44872242831360. Its totient is φ = 6202076843040.

The previous prime is 20516625350159. The next prime is 20516625350183. The reversal of 20516625350166 is 66105352661502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57155875 + ... + 57513713.

It is an arithmetic number, because the mean of its divisors is an integer number (701128794240).

Almost surely, 2^{20516625350166} is an apocalyptic number.

20516625350166 is an abundant number, since it is smaller than the sum of its proper divisors (24355617481194).

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

20516625350166 is a wasteful number, since it uses less digits than its factorization.

20516625350166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359961.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 20516625350166 in words is "twenty trillion, five hundred sixteen billion, six hundred twenty-five million, three hundred fifty thousand, one hundred sixty-six".