75556646320763 has 2 divisors, whose sum is σ = 75556646320764. Its totient is φ = 75556646320762.

The previous prime is 75556646320739. The next prime is 75556646320787. The reversal of 75556646320763 is 36702364665557.

It is a balanced prime because it is at equal distance from previous prime (75556646320739) and next prime (75556646320787).

It is a cyclic number.

It is not a de Polignac number, because 75556646320763 - 2¹² = 75556646316667 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75556646320763.

It is not a weakly prime, because it can be changed into another prime (75556646320963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37778323160381 + 37778323160382.

It is an arithmetic number, because the mean of its divisors is an integer number (37778323160382).

Almost surely, 2^{75556646320763} is an apocalyptic number.

75556646320763 is a deficient number, since it is larger than the sum of its proper divisors (1).

75556646320763 is an equidigital number, since it uses as much as digits as its factorization.

75556646320763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536000, while the sum is 65.

The spelling of 75556646320763 in words is "seventy-five trillion, five hundred fifty-six billion, six hundred forty-six million, three hundred twenty thousand, seven hundred sixty-three".