161101617 has 8 divisors (see below), whose sum is σ = 214972224. Its totient is φ = 107316048.

The previous prime is 161101613. The next prime is 161101643. The reversal of 161101617 is 716101161.

161101617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161101617 - 2² = 161101613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161101613) 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, 16698 + ... + 24515.

It is an arithmetic number, because the mean of its divisors is an integer number (26871528).

Almost surely, 2^161101617 is an apocalyptic number.

It is an amenable number.

161101617 is a deficient number, since it is larger than the sum of its proper divisors (53870607).

161101617 is a wasteful number, since it uses less digits than its factorization.

161101617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42519.

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 161101617 is about 12692.5811795710. The cubic root of 161101617 is about 544.1266116505.

Adding to 161101617 its reverse (716101161), we get a palindrome (877202778).

The spelling of 161101617 in words is "one hundred sixty-one million, one hundred one thousand, six hundred seventeen".