20016211365 has 24 divisors (see below), whose sum is σ = 35891139960. Its totient is φ = 10307197824.

The previous prime is 20016211337. The next prime is 20016211381. The reversal of 20016211365 is 56311261002.

20016211365 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 621 + 1 + 36 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6131359809 + 13884851556 = 78303^2 + 117834^2 .

It is not a de Polignac number, because 20016211365 - 2²⁴ = 19999434149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7667742 + ... + 7670351.

It is an arithmetic number, because the mean of its divisors is an integer number (1495464165).

Almost surely, 2^20016211365 is an apocalyptic number.

It is an amenable number.

20016211365 is a deficient number, since it is larger than the sum of its proper divisors (15874928595).

20016211365 is a wasteful number, since it uses less digits than its factorization.

20016211365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15338133 (or 15338130 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 20016211365 its reverse (56311261002), we get a palindrome (76327472367).

The spelling of 20016211365 in words is "twenty billion, sixteen million, two hundred eleven thousand, three hundred sixty-five".