201011950180 has 12 divisors (see below), whose sum is σ = 422125095420. Its totient is φ = 80404780064.

The previous prime is 201011950163. The next prime is 201011950193. The reversal of 201011950180 is 81059110102.

It can be written as a sum of positive squares in 2 ways, for example, as 31748825124 + 169263125056 = 178182^2 + 411416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5025298735 + ... + 5025298774.

It is an arithmetic number, because the mean of its divisors is an integer number (35177091285).

Almost surely, 2^201011950180 is an apocalyptic number.

201011950180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011950180 is an abundant number, since it is smaller than the sum of its proper divisors (221113145240).

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

201011950180 is a wasteful number, since it uses less digits than its factorization.

201011950180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050597518 (or 10050597516 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 28.

The spelling of 201011950180 in words is "two hundred one billion, eleven million, nine hundred fifty thousand, one hundred eighty".