66740667334 has 16 divisors (see below), whose sum is σ = 109413891216. Its totient is φ = 30280586400.

The previous prime is 66740667293. The next prime is 66740667337. The reversal of 66740667334 is 43376604766.

66740667334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740667337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791857 + ... + 2815660.

It is an arithmetic number, because the mean of its divisors is an integer number (6838368201).

Almost surely, 2^66740667334 is an apocalyptic number.

66740667334 is a deficient number, since it is larger than the sum of its proper divisors (42673223882).

66740667334 is a wasteful number, since it uses less digits than its factorization.

66740667334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608071.

The product of its (nonzero) digits is 9144576, while the sum is 52.

The spelling of 66740667334 in words is "sixty-six billion, seven hundred forty million, six hundred sixty-seven thousand, three hundred thirty-four".