17120418096561 has 16 divisors (see below), whose sum is σ = 25430859773760. Its totient is φ = 10172343908160.

The previous prime is 17120418096527. The next prime is 17120418096563. The reversal of 17120418096561 is 16569081402171.

It is not a de Polignac number, because 17120418096561 - 2¹¹ = 17120418094513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17120418096563) 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, 7568707135 + ... + 7568709396.

It is an arithmetic number, because the mean of its divisors is an integer number (1589428735860).

Almost surely, 2^{17120418096561} is an apocalyptic number.

It is an amenable number.

17120418096561 is a deficient number, since it is larger than the sum of its proper divisors (8310441677199).

17120418096561 is a wasteful number, since it uses less digits than its factorization.

17120418096561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137416576.

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 17120418096561 in words is "seventeen trillion, one hundred twenty billion, four hundred eighteen million, ninety-six thousand, five hundred sixty-one".