20335465305 has 24 divisors (see below), whose sum is σ = 35254212552. Its totient is φ = 10843713024.

The previous prime is 20335465303. The next prime is 20335465307. The reversal of 20335465305 is 50356453302.

It is an interprime number because it is at equal distance from previous prime (20335465303) and next prime (20335465307).

It can be written as a sum of positive squares in 4 ways, for example, as 1608090201 + 18727375104 = 40101^2 + 136848^2 .

It is not a de Polignac number, because 20335465305 - 2¹ = 20335465303 is a prime.

It is a super-2 number, since 2×20335465305² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20335465305.

It is not an unprimeable number, because it can be changed into a prime (20335465303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248497 + ... + 320033.

It is an arithmetic number, because the mean of its divisors is an integer number (1468925523).

Almost surely, 2^20335465305 is an apocalyptic number.

It is an amenable number.

20335465305 is a deficient number, since it is larger than the sum of its proper divisors (14918747247).

20335465305 is a wasteful number, since it uses less digits than its factorization.

20335465305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77865 (or 77862 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 20335465305 in words is "twenty billion, three hundred thirty-five million, four hundred sixty-five thousand, three hundred five".