20732076137 has 2 divisors, whose sum is σ = 20732076138. Its totient is φ = 20732076136.

The previous prime is 20732076089. The next prime is 20732076229. The reversal of 20732076137 is 73167023702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11716763536 + 9015312601 = 108244^2 + 94949^2 .

It is a cyclic number.

It is not a de Polignac number, because 20732076137 - 2¹⁰ = 20732075113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20732076137.

It is not a weakly prime, because it can be changed into another prime (20732076437) 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 as a sum of consecutive naturals, namely, 10366038068 + 10366038069.

It is an arithmetic number, because the mean of its divisors is an integer number (10366038069).

Almost surely, 2^20732076137 is an apocalyptic number.

It is an amenable number.

20732076137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20732076137 is an equidigital number, since it uses as much as digits as its factorization.

20732076137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 38.

Adding to 20732076137 its reverse (73167023702), we get a palindrome (93899099839).

The spelling of 20732076137 in words is "twenty billion, seven hundred thirty-two million, seventy-six thousand, one hundred thirty-seven".