17133157985 has 4 divisors (see below), whose sum is σ = 20559789588. Its totient is φ = 13706526384.

The previous prime is 17133157967. The next prime is 17133157997. The reversal of 17133157985 is 58975133171.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6029056609 + 11104101376 = 77647^2 + 105376^2 .

It is a cyclic number.

It is not a de Polignac number, because 17133157985 - 2¹⁰ = 17133156961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713315794 + ... + 1713315803.

It is an arithmetic number, because the mean of its divisors is an integer number (5139947397).

Almost surely, 2^17133157985 is an apocalyptic number.

It is an amenable number.

17133157985 is a deficient number, since it is larger than the sum of its proper divisors (3426631603).

17133157985 is an equidigital number, since it uses as much as digits as its factorization.

17133157985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426631602.

The product of its digits is 793800, while the sum is 50.

The spelling of 17133157985 in words is "seventeen billion, one hundred thirty-three million, one hundred fifty-seven thousand, nine hundred eighty-five".