70086665191 has 4 divisors (see below), whose sum is σ = 70091110432. Its totient is φ = 70082219952.

The previous prime is 70086665167. The next prime is 70086665197. The reversal of 70086665191 is 19156668007.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70086665191 - 2²¹ = 70084568039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70086665197) 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, 2198886 + ... + 2230531.

It is an arithmetic number, because the mean of its divisors is an integer number (17522777608).

Almost surely, 2^70086665191 is an apocalyptic number.

70086665191 is a deficient number, since it is larger than the sum of its proper divisors (4445241).

70086665191 is a wasteful number, since it uses less digits than its factorization.

70086665191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445240.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 70086665191 in words is "seventy billion, eighty-six million, six hundred sixty-five thousand, one hundred ninety-one".