20514201146166 has 64 divisors (see below), whose sum is σ = 50499237454848. Its totient is φ = 5410044943488.

The previous prime is 20514201146113. The next prime is 20514201146171. The reversal of 20514201146166 is 66164110241502.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

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, 9135400 + ... + 11157236.

It is an arithmetic number, because the mean of its divisors is an integer number (789050585232).

Almost surely, 2^{20514201146166} is an apocalyptic number.

20514201146166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20514201146166 is an abundant number, since it is smaller than the sum of its proper divisors (29985036308682).

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

20514201146166 is a wasteful number, since it uses less digits than its factorization.

20514201146166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040445.

The product of its (nonzero) digits is 69120, while the sum is 39.

Adding to 20514201146166 its reverse (66164110241502), we get a palindrome (86678311387668).

The spelling of 20514201146166 in words is "twenty trillion, five hundred fourteen billion, two hundred one million, one hundred forty-six thousand, one hundred sixty-six".