20018281819102 has 16 divisors (see below), whose sum is σ = 34323886651392. Its totient is φ = 8577555610680.

The previous prime is 20018281819091. The next prime is 20018281819121. The reversal of 20018281819102 is 20191818281002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142262674 + ... + 142403317.

It is an arithmetic number, because the mean of its divisors is an integer number (2145242915712).

Almost surely, 2^{20018281819102} is an apocalyptic number.

20018281819102 is a deficient number, since it is larger than the sum of its proper divisors (14305604832290).

20018281819102 is a wasteful number, since it uses less digits than its factorization.

20018281819102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284671023.

The product of its (nonzero) digits is 36864, while the sum is 43.

The spelling of 20018281819102 in words is "twenty trillion, eighteen billion, two hundred eighty-one million, eight hundred nineteen thousand, one hundred two".