66710153347 has 4 divisors (see below), whose sum is σ = 66801163840. Its totient is φ = 66619142856.

The previous prime is 66710153297. The next prime is 66710153371. The reversal of 66710153347 is 74335101766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74335101766 = 2 ⋅37167550883.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66710153347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66710153387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45504147 + ... + 45505612.

It is an arithmetic number, because the mean of its divisors is an integer number (16700290960).

Almost surely, 2^66710153347 is an apocalyptic number.

66710153347 is a deficient number, since it is larger than the sum of its proper divisors (91010493).

66710153347 is an equidigital number, since it uses as much as digits as its factorization.

66710153347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91010492.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 66710153347 in words is "sixty-six billion, seven hundred ten million, one hundred fifty-three thousand, three hundred forty-seven".