66773737070 has 64 divisors (see below), whose sum is σ = 124669310976. Its totient is φ = 25733621760.

The previous prime is 66773737031. The next prime is 66773737081. The reversal of 66773737070 is 7073737766.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31600334 + ... + 31602446.

It is an arithmetic number, because the mean of its divisors is an integer number (1947957984).

Almost surely, 2^66773737070 is an apocalyptic number.

66773737070 is a deficient number, since it is larger than the sum of its proper divisors (57895573906).

66773737070 is a wasteful number, since it uses less digits than its factorization.

66773737070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185.

The product of its (nonzero) digits is 5445468, while the sum is 53.

The spelling of 66773737070 in words is "sixty-six billion, seven hundred seventy-three million, seven hundred thirty-seven thousand, seventy".