20006014393 has 6 divisors (see below), whose sum is σ = 20672188602. Its totient is φ = 19360658160.

The previous prime is 20006014363. The next prime is 20006014403. The reversal of 20006014393 is 39341060002.

It can be written as a sum of positive squares in only one way, i.e., 10669237264 + 9336777129 = 103292^2 + 96627^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20006014393 is a prime.

It is a super-2 number, since 2×20006014393² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20006014363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10407996 + ... + 10409917.

It is an arithmetic number, because the mean of its divisors is an integer number (3445364767).

Almost surely, 2^20006014393 is an apocalyptic number.

It is an amenable number.

20006014393 is a deficient number, since it is larger than the sum of its proper divisors (666174209).

20006014393 is an equidigital number, since it uses as much as digits as its factorization.

20006014393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20817975 (or 20817944 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 20006014393 its reverse (39341060002), we get a palindrome (59347074395).

The spelling of 20006014393 in words is "twenty billion, six million, fourteen thousand, three hundred ninety-three".