20824341965 has 16 divisors (see below), whose sum is σ = 28611334272. Its totient is φ = 14253430464.

The previous prime is 20824341959. The next prime is 20824341971. The reversal of 20824341965 is 56914342802.

It is an interprime number because it is at equal distance from previous prime (20824341959) and next prime (20824341971).

It is not a de Polignac number, because 20824341965 - 2¹⁴ = 20824325581 is a prime.

It is a super-2 number, since 2×20824341965² (a number of 21 digits) contains 22 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, 524714 + ... + 563003.

It is an arithmetic number, because the mean of its divisors is an integer number (1788208392).

Almost surely, 2^20824341965 is an apocalyptic number.

It is an amenable number.

20824341965 is a deficient number, since it is larger than the sum of its proper divisors (7786992307).

20824341965 is a wasteful number, since it uses less digits than its factorization.

20824341965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088276.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 20824341965 in words is "twenty billion, eight hundred twenty-four million, three hundred forty-one thousand, nine hundred sixty-five".