161233567 has 8 divisors (see below), whose sum is σ = 178301520. Its totient is φ = 144567360.

The previous prime is 161233561. The next prime is 161233571. The reversal of 161233567 is 765332161.

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 161233567 - 2⁷ = 161233439 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 (161233561) 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, 99592 + ... + 101197.

It is an arithmetic number, because the mean of its divisors is an integer number (22287690).

Almost surely, 2^161233567 is an apocalyptic number.

161233567 is a deficient number, since it is larger than the sum of its proper divisors (17067953).

161233567 is a wasteful number, since it uses less digits than its factorization.

161233567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200873.

The product of its digits is 22680, while the sum is 34.

The square root of 161233567 is about 12697.7780339711. The cubic root of 161233567 is about 544.2751264301.

The spelling of 161233567 in words is "one hundred sixty-one million, two hundred thirty-three thousand, five hundred sixty-seven".