82633703561 has 2 divisors, whose sum is σ = 82633703562. Its totient is φ = 82633703560.

The previous prime is 82633703557. The next prime is 82633703563. The reversal of 82633703561 is 16530733628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74007937936 + 8625765625 = 272044^2 + 92875^2 .

It is a cyclic number.

It is not a de Polignac number, because 82633703561 - 2² = 82633703557 is a prime.

Together with 82633703563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82633703563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41316851780 + 41316851781.

It is an arithmetic number, because the mean of its divisors is an integer number (41316851781).

Almost surely, 2^82633703561 is an apocalyptic number.

It is an amenable number.

82633703561 is a deficient number, since it is larger than the sum of its proper divisors (1).

82633703561 is an equidigital number, since it uses as much as digits as its factorization.

82633703561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 82633703561 in words is "eighty-two billion, six hundred thirty-three million, seven hundred three thousand, five hundred sixty-one".