161488296 has 128 divisors (see below), whose sum is σ = 477840000. Its totient is φ = 50528448.

The previous prime is 161488231. The next prime is 161488307. The reversal of 161488296 is 692884161.

161488296 is a `hidden beast` number, since 1 + 614 + 8 + 8 + 29 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1481490 + ... + 1481598.

It is an arithmetic number, because the mean of its divisors is an integer number (3733125).

Almost surely, 2^161488296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161488296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238920000).

161488296 is an abundant number, since it is smaller than the sum of its proper divisors (316351704).

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

161488296 is a wasteful number, since it uses less digits than its factorization.

161488296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 133 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 161488296 is about 12707.8045310746. The cubic root of 161488296 is about 544.5616046380.

The spelling of 161488296 in words is "one hundred sixty-one million, four hundred eighty-eight thousand, two hundred ninety-six".