161847686220307 has 16 divisors (see below), whose sum is σ = 173960348556960. Its totient is φ = 150125123008512.

The previous prime is 161847686220301. The next prime is 161847686220317. The reversal of 161847686220307 is 703022686748161.

It is a cyclic number.

It is not a de Polignac number, because 161847686220307 - 2³⁹ = 161297930406419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161847686220301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425682358 + ... + 426062395.

It is an arithmetic number, because the mean of its divisors is an integer number (10872521784810).

Almost surely, 2^{161847686220307} is an apocalyptic number.

161847686220307 is a deficient number, since it is larger than the sum of its proper divisors (12112662336653).

161847686220307 is a wasteful number, since it uses less digits than its factorization.

161847686220307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851744982.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 161847686220307 in words is "one hundred sixty-one trillion, eight hundred forty-seven billion, six hundred eighty-six million, two hundred twenty thousand, three hundred seven".