20440553319 has 12 divisors (see below), whose sum is σ = 30323223736. Its totient is φ = 13258737072.

The previous prime is 20440553293. The next prime is 20440553369. The reversal of 20440553319 is 91335504402.

20440553319 is a `hidden beast` number, since 204 + 405 + 5 + 33 + 19 = 666.

It is not a de Polignac number, because 20440553319 - 2¹² = 20440549223 is a prime.

It is a super-2 number, since 2×20440553319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440553369) 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 11 ways as a sum of consecutive naturals, for example, 30691189 + ... + 30691854.

Almost surely, 2^20440553319 is an apocalyptic number.

20440553319 is a deficient number, since it is larger than the sum of its proper divisors (9882670417).

20440553319 is a wasteful number, since it uses less digits than its factorization.

20440553319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61383086 (or 61383083 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 20440553319 in words is "twenty billion, four hundred forty million, five hundred fifty-three thousand, three hundred nineteen".