75066265993 has 2 divisors, whose sum is σ = 75066265994. Its totient is φ = 75066265992.

The previous prime is 75066265979. The next prime is 75066266003. The reversal of 75066265993 is 39956266057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66603737929 + 8462528064 = 258077^2 + 91992^2 .

It is a cyclic number.

It is not a de Polignac number, because 75066265993 - 2¹⁷ = 75066134921 is a prime.

It is not a weakly prime, because it can be changed into another prime (75066265913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37533132996 + 37533132997.

It is an arithmetic number, because the mean of its divisors is an integer number (37533132997).

Almost surely, 2^75066265993 is an apocalyptic number.

It is an amenable number.

75066265993 is a deficient number, since it is larger than the sum of its proper divisors (1).

75066265993 is an equidigital number, since it uses as much as digits as its factorization.

75066265993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18370800, while the sum is 58.

The spelling of 75066265993 in words is "seventy-five billion, sixty-six million, two hundred sixty-five thousand, nine hundred ninety-three".