161232606 has 60 divisors (see below), whose sum is σ = 371819448. Its totient is φ = 52219728.

The previous prime is 161232593. The next prime is 161232647. The reversal of 161232606 is 606232161.

161232606 is a `hidden beast` number, since 16 + 12 + 32 + 606 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 161232606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 221415 + ... + 222141.

Almost surely, 2^161232606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161232606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185909724).

161232606 is an abundant number, since it is smaller than the sum of its proper divisors (210586842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161232606 is an equidigital number, since it uses as much as digits as its factorization.

161232606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 161232606 is about 12697.7401926485. The cubic root of 161232606 is about 544.2740450808.

Adding to 161232606 its reverse (606232161), we get a palindrome (767464767).

The spelling of 161232606 in words is "one hundred sixty-one million, two hundred thirty-two thousand, six hundred six".