161753567606 has 16 divisors (see below), whose sum is σ = 251694354240. Its totient is φ = 77905389120.

The previous prime is 161753567603. The next prime is 161753567611. The reversal of 161753567606 is 606765357161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161753567603) 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, 12478361 + ... + 12491316.

It is an arithmetic number, because the mean of its divisors is an integer number (15730897140).

Almost surely, 2^161753567606 is an apocalyptic number.

161753567606 is a deficient number, since it is larger than the sum of its proper divisors (89940786634).

161753567606 is a wasteful number, since it uses less digits than its factorization.

161753567606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24969799.

The product of its (nonzero) digits is 4762800, while the sum is 53.

The spelling of 161753567606 in words is "one hundred sixty-one billion, seven hundred fifty-three million, five hundred sixty-seven thousand, six hundred six".