502366135264661 has 2 divisors, whose sum is σ = 502366135264662. Its totient is φ = 502366135264660.

The previous prime is 502366135264613. The next prime is 502366135264691. The reversal of 502366135264661 is 166462531663205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385236793502500 + 117129341762161 = 19627450^2 + 10822631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502366135264661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 502366135264597 and 502366135264606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502366135264691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251183067632330 + 251183067632331.

It is an arithmetic number, because the mean of its divisors is an integer number (251183067632331).

Almost surely, 2^{502366135264661} is an apocalyptic number.

It is an amenable number.

502366135264661 is a deficient number, since it is larger than the sum of its proper divisors (1).

502366135264661 is an equidigital number, since it uses as much as digits as its factorization.

502366135264661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 502366135264661 in words is "five hundred two trillion, three hundred sixty-six billion, one hundred thirty-five million, two hundred sixty-four thousand, six hundred sixty-one".