56660606539 has 2 divisors, whose sum is σ = 56660606540. Its totient is φ = 56660606538.

The previous prime is 56660606537. The next prime is 56660606549. The reversal of 56660606539 is 93560606665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56660606539 - 2¹ = 56660606537 is a prime.

Together with 56660606537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56660606537) 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, 28330303269 + 28330303270.

It is an arithmetic number, because the mean of its divisors is an integer number (28330303270).

Almost surely, 2^56660606539 is an apocalyptic number.

56660606539 is a deficient number, since it is larger than the sum of its proper divisors (1).

56660606539 is an equidigital number, since it uses as much as digits as its factorization.

56660606539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5248800, while the sum is 52.

The spelling of 56660606539 in words is "fifty-six billion, six hundred sixty million, six hundred six thousand, five hundred thirty-nine".