56643571040099 has 2 divisors, whose sum is σ = 56643571040100. Its totient is φ = 56643571040098.

The previous prime is 56643571039963. The next prime is 56643571040101. The reversal of 56643571040099 is 99004017534665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56643571040099 - 2⁸ = 56643571039843 is a prime.

It is a Sophie Germain prime.

Together with 56643571040101, 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 (56643571040599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28321785520049 + 28321785520050.

It is an arithmetic number, because the mean of its divisors is an integer number (28321785520050).

Almost surely, 2^{56643571040099} is an apocalyptic number.

56643571040099 is a deficient number, since it is larger than the sum of its proper divisors (1).

56643571040099 is an equidigital number, since it uses as much as digits as its factorization.

56643571040099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 56643571040099 in words is "fifty-six trillion, six hundred forty-three billion, five hundred seventy-one million, forty thousand, ninety-nine".