20363688601 has 2 divisors, whose sum is σ = 20363688602. Its totient is φ = 20363688600.

The previous prime is 20363688589. The next prime is 20363688607. The reversal of 20363688601 is 10688636302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20306535001 + 57153600 = 142501^2 + 7560^2 .

It is a cyclic number.

It is not a de Polignac number, because 20363688601 - 2²¹ = 20361591449 is a prime.

It is a super-3 number, since 3×20363688601³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20363688607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181844300 + 10181844301.

It is an arithmetic number, because the mean of its divisors is an integer number (10181844301).

Almost surely, 2^20363688601 is an apocalyptic number.

It is an amenable number.

20363688601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20363688601 is an equidigital number, since it uses as much as digits as its factorization.

20363688601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

It can be divided in two parts, 20363 and 688601, that added together give a square (708964 = 842²).

The spelling of 20363688601 in words is "twenty billion, three hundred sixty-three million, six hundred eighty-eight thousand, six hundred one".