17561670113 has 8 divisors (see below), whose sum is σ = 19907966400. Its totient is φ = 15357573648.

The previous prime is 17561670107. The next prime is 17561670127. The reversal of 17561670113 is 31107616571.

It is a happy number.

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 17561670113 - 2²⁸ = 17293234657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17561670103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35549693 + ... + 35550186.

It is an arithmetic number, because the mean of its divisors is an integer number (2488495800).

Almost surely, 2^17561670113 is an apocalyptic number.

17561670113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

17561670113 is a deficient number, since it is larger than the sum of its proper divisors (2346296287).

17561670113 is a wasteful number, since it uses less digits than its factorization.

17561670113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71099911.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 17561670113 in words is "seventeen billion, five hundred sixty-one million, six hundred seventy thousand, one hundred thirteen".