20020218793165 has 16 divisors (see below), whose sum is σ = 25069341390336. Its totient is φ = 15319486124800.

The previous prime is 20020218793121. The next prime is 20020218793181. The reversal of 20020218793165 is 56139781202002.

It is not a de Polignac number, because 20020218793165 - 2³⁷ = 19882779839693 is a prime.

It is a super-3 number, since 3×20020218793165³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

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, 3477285 + ... + 7220245.

It is an arithmetic number, because the mean of its divisors is an integer number (1566833836896).

Almost surely, 2^{20020218793165} is an apocalyptic number.

It is an amenable number.

20020218793165 is a deficient number, since it is larger than the sum of its proper divisors (5049122597171).

20020218793165 is a wasteful number, since it uses less digits than its factorization.

20020218793165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789500.

The product of its (nonzero) digits is 362880, while the sum is 46.

Adding to 20020218793165 its reverse (56139781202002), we get a palindrome (76159999995167).

The spelling of 20020218793165 in words is "twenty trillion, twenty billion, two hundred eighteen million, seven hundred ninety-three thousand, one hundred sixty-five".