3636661013 has 2 divisors, whose sum is σ = 3636661014. Its totient is φ = 3636661012.

The previous prime is 3636660959. The next prime is 3636661051. The reversal of 3636661013 is 3101666363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2304192004 + 1332469009 = 48002^2 + 36503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3636661013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3636661073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1818330506 + 1818330507.

It is an arithmetic number, because the mean of its divisors is an integer number (1818330507).

Almost surely, 2^3636661013 is an apocalyptic number.

It is an amenable number.

3636661013 is a deficient number, since it is larger than the sum of its proper divisors (1).

3636661013 is an equidigital number, since it uses as much as digits as its factorization.

3636661013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 3636661013 is about 60304.7345819547. The cubic root of 3636661013 is about 1537.8038371741.

It can be divided in two parts, 36366 and 61013, that added together give a palindrome (97379).

The spelling of 3636661013 in words is "three billion, six hundred thirty-six million, six hundred sixty-one thousand, thirteen".