20383369965 has 96 divisors (see below), whose sum is σ = 41732361216. Its totient is φ = 9009745920.

The previous prime is 20383369961. The next prime is 20383369969. The reversal of 20383369965 is 56996338302.

It is an interprime number because it is at equal distance from previous prime (20383369961) and next prime (20383369969).

It is not a de Polignac number, because 20383369965 - 2² = 20383369961 is a prime.

It is a super-2 number, since 2×20383369965² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383369961) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1452412 + ... + 1466378.

It is an arithmetic number, because the mean of its divisors is an integer number (434712096).

Almost surely, 2^20383369965 is an apocalyptic number.

It is an amenable number.

20383369965 is an abundant number, since it is smaller than the sum of its proper divisors (21348991251).

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

20383369965 is a wasteful number, since it uses less digits than its factorization.

20383369965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14139 (or 14136 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 20383369965 in words is "twenty billion, three hundred eighty-three million, three hundred sixty-nine thousand, nine hundred sixty-five".