20018372818202 has 64 divisors (see below), whose sum is σ = 34638720270336. Its totient is φ = 8587927138560.

The previous prime is 20018372818181. The next prime is 20018372818207. The reversal of 20018372818202 is 20281827381002.

It is not an unprimeable number, because it can be changed into a prime (20018372818207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11965703 + ... + 13535685.

It is an arithmetic number, because the mean of its divisors is an integer number (541230004224).

Almost surely, 2^{20018372818202} is an apocalyptic number.

20018372818202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20018372818202 is a deficient number, since it is larger than the sum of its proper divisors (14620347452134).

20018372818202 is a wasteful number, since it uses less digits than its factorization.

20018372818202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570355.

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 20018372818202 in words is "twenty trillion, eighteen billion, three hundred seventy-two million, eight hundred eighteen thousand, two hundred two".