20036351653 has 2 divisors, whose sum is σ = 20036351654. Its totient is φ = 20036351652.

The previous prime is 20036351617. The next prime is 20036351669. The reversal of 20036351653 is 35615363002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14467759524 + 5568592129 = 120282^2 + 74623^2 .

It is a cyclic number.

It is not a de Polignac number, because 20036351653 - 2²¹ = 20034254501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20036358653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10018175826 + 10018175827.

It is an arithmetic number, because the mean of its divisors is an integer number (10018175827).

Almost surely, 2^20036351653 is an apocalyptic number.

It is an amenable number.

20036351653 is a deficient number, since it is larger than the sum of its proper divisors (1).

20036351653 is an equidigital number, since it uses as much as digits as its factorization.

20036351653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 34.

The spelling of 20036351653 in words is "twenty billion, thirty-six million, three hundred fifty-one thousand, six hundred fifty-three".