161135599847 has 8 divisors (see below), whose sum is σ = 162824785200. Its totient is φ = 159446985984.

The previous prime is 161135599841. The next prime is 161135599853. The reversal of 161135599847 is 748995531161.

It is an interprime number because it is at equal distance from previous prime (161135599841) and next prime (161135599853).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161135599847 - 2⁶ = 161135599783 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 (161135599841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436229 + ... + 715937.

It is an arithmetic number, because the mean of its divisors is an integer number (20353098150).

Almost surely, 2^161135599847 is an apocalyptic number.

161135599847 is a deficient number, since it is larger than the sum of its proper divisors (1689185353).

161135599847 is an equidigital number, since it uses as much as digits as its factorization.

161135599847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285745.

The product of its digits is 8164800, while the sum is 59.

The spelling of 161135599847 in words is "one hundred sixty-one billion, one hundred thirty-five million, five hundred ninety-nine thousand, eight hundred forty-seven".