161753576564717 has 16 divisors (see below), whose sum is σ = 163751145234432. Its totient is φ = 159767368714800.

The previous prime is 161753576564711. The next prime is 161753576564737. The reversal of 161753576564717 is 717465675357161.

It is a cyclic number.

It is not a de Polignac number, because 161753576564717 - 2¹² = 161753576560621 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 (161753576564711) 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, 998872718 + ... + 999034640.

It is an arithmetic number, because the mean of its divisors is an integer number (10234446577152).

Almost surely, 2^{161753576564717} is an apocalyptic number.

It is an amenable number.

161753576564717 is a deficient number, since it is larger than the sum of its proper divisors (1997568669715).

161753576564717 is a wasteful number, since it uses less digits than its factorization.

161753576564717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196928.

The product of its digits is 777924000, while the sum is 71.

The spelling of 161753576564717 in words is "one hundred sixty-one trillion, seven hundred fifty-three billion, five hundred seventy-six million, five hundred sixty-four thousand, seven hundred seventeen".