20337449337 has 6 divisors (see below), whose sum is σ = 29376315722. Its totient is φ = 13558299552.

The previous prime is 20337449287. The next prime is 20337449339. The reversal of 20337449337 is 73394473302.

20337449337 is a `hidden beast` number, since 203 + 3 + 74 + 49 + 337 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12103520256 + 8233929081 = 110016^2 + 90741^2 .

It is not a de Polignac number, because 20337449337 - 2¹² = 20337445241 is a prime.

It is a super-2 number, since 2×20337449337² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20337449292 and 20337449301.

It is not an unprimeable number, because it can be changed into a prime (20337449339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1129858288 + ... + 1129858305.

Almost surely, 2^20337449337 is an apocalyptic number.

It is an amenable number.

20337449337 is a deficient number, since it is larger than the sum of its proper divisors (9038866385).

20337449337 is a wasteful number, since it uses less digits than its factorization.

20337449337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259716599 (or 2259716596 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 45.

The spelling of 20337449337 in words is "twenty billion, three hundred thirty-seven million, four hundred forty-nine thousand, three hundred thirty-seven".