17120005081 has 16 divisors (see below), whose sum is σ = 19112883840. Its totient is φ = 15259432320.

The previous prime is 17120005061. The next prime is 17120005129. The reversal of 17120005081 is 18050002171.

It is a cyclic number.

It is not a de Polignac number, because 17120005081 - 2⁷ = 17120004953 is a prime.

It is a super-2 number, since 2×17120005081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17120005031) 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, 294460 + ... + 347773.

It is an arithmetic number, because the mean of its divisors is an integer number (1194555240).

Almost surely, 2^17120005081 is an apocalyptic number.

It is an amenable number.

17120005081 is a deficient number, since it is larger than the sum of its proper divisors (1992878759).

17120005081 is a wasteful number, since it uses less digits than its factorization.

17120005081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642336.

The product of its (nonzero) digits is 560, while the sum is 25.

The spelling of 17120005081 in words is "seventeen billion, one hundred twenty million, five thousand, eighty-one".