20136537335051 has 2 divisors, whose sum is σ = 20136537335052. Its totient is φ = 20136537335050.

The previous prime is 20136537335039. The next prime is 20136537335087. The reversal of 20136537335051 is 15053373563102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20136537335051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20136537334993 and 20136537335011.

It is not a weakly prime, because it can be changed into another prime (20136537338051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10068268667525 + 10068268667526.

It is an arithmetic number, because the mean of its divisors is an integer number (10068268667526).

Almost surely, 2^{20136537335051} is an apocalyptic number.

20136537335051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20136537335051 is an equidigital number, since it uses as much as digits as its factorization.

20136537335051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 850500, while the sum is 44.

The spelling of 20136537335051 in words is "twenty trillion, one hundred thirty-six billion, five hundred thirty-seven million, three hundred thirty-five thousand, fifty-one".