66734298711 has 40 divisors (see below), whose sum is σ = 105610087440. Its totient is φ = 41850093312.

The previous prime is 66734298707. The next prime is 66734298733. The reversal of 66734298711 is 11789243766.

66734298711 is a `hidden beast` number, since 66 + 73 + 429 + 87 + 11 = 666.

It is not a de Polignac number, because 66734298711 - 2² = 66734298707 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66734298751) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2779225 + ... + 2803133.

It is an arithmetic number, because the mean of its divisors is an integer number (2640252186).

Almost surely, 2^66734298711 is an apocalyptic number.

66734298711 is a deficient number, since it is larger than the sum of its proper divisors (38875788729).

66734298711 is a wasteful number, since it uses less digits than its factorization.

66734298711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25965 (or 25956 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

Subtracting from 66734298711 its reverse (11789243766), we obtain a palindrome (54945054945).

The spelling of 66734298711 in words is "sixty-six billion, seven hundred thirty-four million, two hundred ninety-eight thousand, seven hundred eleven".