20334013345 has 16 divisors (see below), whose sum is σ = 25001604432. Its totient is φ = 15866864640.

The previous prime is 20334013331. The next prime is 20334013363. The reversal of 20334013345 is 54331043302.

It can be written as a sum of positive squares in 8 ways, for example, as 2642885281 + 17691128064 = 51409^2 + 133008^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20334013345 is a prime.

It is a Duffinian 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, 1236799 + ... + 1253131.

It is an arithmetic number, because the mean of its divisors is an integer number (1562600277).

Almost surely, 2^20334013345 is an apocalyptic number.

It is an amenable number.

20334013345 is a deficient number, since it is larger than the sum of its proper divisors (4667591087).

20334013345 is a wasteful number, since it uses less digits than its factorization.

20334013345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22452.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20334013345 its reverse (54331043302), we get a palindrome (74665056647).

The spelling of 20334013345 in words is "twenty billion, three hundred thirty-four million, thirteen thousand, three hundred forty-five".