66337254799 has 2 divisors, whose sum is σ = 66337254800. Its totient is φ = 66337254798.

The previous prime is 66337254677. The next prime is 66337254821. The reversal of 66337254799 is 99745273366.

66337254799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66337254799 - 2²⁵ = 66303700367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66337254499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33168627399 + 33168627400.

It is an arithmetic number, because the mean of its divisors is an integer number (33168627400).

Almost surely, 2^66337254799 is an apocalyptic number.

66337254799 is a deficient number, since it is larger than the sum of its proper divisors (1).

66337254799 is an equidigital number, since it uses as much as digits as its factorization.

66337254799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 61.

The spelling of 66337254799 in words is "sixty-six billion, three hundred thirty-seven million, two hundred fifty-four thousand, seven hundred ninety-nine".