20166662045152 has 96 divisors (see below), whose sum is σ = 46951885310400. Its totient is φ = 8342649520128.

The previous prime is 20166662045093. The next prime is 20166662045207. The reversal of 20166662045152 is 25154026666102.

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, 24626224 + ... + 25431952.

It is an arithmetic number, because the mean of its divisors is an integer number (489082138650).

Almost surely, 2^{20166662045152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20166662045152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23475942655200).

20166662045152 is an abundant number, since it is smaller than the sum of its proper divisors (26785223265248).

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

20166662045152 is a wasteful number, since it uses less digits than its factorization.

20166662045152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809628 (or 809620 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 20166662045152 in words is "twenty trillion, one hundred sixty-six billion, six hundred sixty-two million, forty-five thousand, one hundred fifty-two".