161235368 has 32 divisors (see below), whose sum is σ = 363691200. Its totient is φ = 65463552.

The previous prime is 161235323. The next prime is 161235379. The reversal of 161235368 is 863532161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74705 + ... + 76832.

It is an arithmetic number, because the mean of its divisors is an integer number (11365350).

Almost surely, 2^161235368 is an apocalyptic number.

It is an amenable number.

161235368 is an abundant number, since it is smaller than the sum of its proper divisors (202455832).

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

161235368 is a wasteful number, since it uses less digits than its factorization.

161235368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151569 (or 151565 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 161235368 is about 12697.8489516926. The cubic root of 161235368 is about 544.2771529640.

The spelling of 161235368 in words is "one hundred sixty-one million, two hundred thirty-five thousand, three hundred sixty-eight".