70666891305 has 64 divisors (see below), whose sum is σ = 119448207360. Its totient is φ = 35605253376.

The previous prime is 70666891283. The next prime is 70666891343. The reversal of 70666891305 is 50319866607.

It is not a de Polignac number, because 70666891305 - 2⁶ = 70666891241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10030114 + ... + 10037156.

It is an arithmetic number, because the mean of its divisors is an integer number (1866378240).

Almost surely, 2^70666891305 is an apocalyptic number.

It is an amenable number.

70666891305 is a deficient number, since it is larger than the sum of its proper divisors (48781316055).

70666891305 is a wasteful number, since it uses less digits than its factorization.

70666891305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 70666891305 in words is "seventy billion, six hundred sixty-six million, eight hundred ninety-one thousand, three hundred five".