20350156202653 has 2 divisors, whose sum is σ = 20350156202654. Its totient is φ = 20350156202652.

The previous prime is 20350156202617. The next prime is 20350156202681. The reversal of 20350156202653 is 35620265105302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11198212255129 + 9151943947524 = 3346373^2 + 3025218^2 .

It is a cyclic number.

It is not a de Polignac number, because 20350156202653 - 2³⁷ = 20212717249181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20350156202053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175078101326 + 10175078101327.

It is an arithmetic number, because the mean of its divisors is an integer number (10175078101327).

Almost surely, 2^{20350156202653} is an apocalyptic number.

It is an amenable number.

20350156202653 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350156202653 is an equidigital number, since it uses as much as digits as its factorization.

20350156202653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 20350156202653 in words is "twenty trillion, three hundred fifty billion, one hundred fifty-six million, two hundred two thousand, six hundred fifty-three".