66734373404774 has 4 divisors (see below), whose sum is σ = 100101560107164. Its totient is φ = 33367186702386.

The previous prime is 66734373404681. The next prime is 66734373404893. The reversal of 66734373404774 is 47740437343766.

66734373404774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66734373404774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16683593351192 + ... + 16683593351195.

It is an arithmetic number, because the mean of its divisors is an integer number (25025390026791).

Almost surely, 2^{66734373404774} is an apocalyptic number.

66734373404774 is a deficient number, since it is larger than the sum of its proper divisors (33367186702390).

66734373404774 is a wasteful number, since it uses less digits than its factorization.

66734373404774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367186702389.

The product of its (nonzero) digits is 597445632, while the sum is 65.

The spelling of 66734373404774 in words is "sixty-six trillion, seven hundred thirty-four billion, three hundred seventy-three million, four hundred four thousand, seven hundred seventy-four".