20460340037 has 2 divisors, whose sum is σ = 20460340038. Its totient is φ = 20460340036.

The previous prime is 20460339979. The next prime is 20460340223. The reversal of 20460340037 is 73004306402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12142717636 + 8317622401 = 110194^2 + 91201^2 .

It is a cyclic number.

It is not a de Polignac number, because 20460340037 - 2²² = 20456145733 is a prime.

It is a super-2 number, since 2×20460340037² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20460339991 and 20460340009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20460340237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230170018 + 10230170019.

It is an arithmetic number, because the mean of its divisors is an integer number (10230170019).

Almost surely, 2^20460340037 is an apocalyptic number.

It is an amenable number.

20460340037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460340037 is an equidigital number, since it uses as much as digits as its factorization.

20460340037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 20460340037 its reverse (73004306402), we get a palindrome (93464646439).

The spelling of 20460340037 in words is "twenty billion, four hundred sixty million, three hundred forty thousand, thirty-seven".