161394696 has 48 divisors (see below), whose sum is σ = 447780060. Its totient is φ = 52485120.

The previous prime is 161394661. The next prime is 161394697. The reversal of 161394696 is 696493161.

It can be written as a sum of positive squares in 2 ways, for example, as 125753796 + 35640900 = 11214^2 + 5970^2 .

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

It is not an unprimeable number, because it can be changed into a prime (161394697) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24385 + ... + 30288.

Almost surely, 2^161394696 is an apocalyptic number.

It is an amenable number.

161394696 is an abundant number, since it is smaller than the sum of its proper divisors (286385364).

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

161394696 is a wasteful number, since it uses less digits than its factorization.

161394696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54726 (or 54719 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 161394696 is about 12704.1212210841. The cubic root of 161394696 is about 544.4563734471.

The spelling of 161394696 in words is "one hundred sixty-one million, three hundred ninety-four thousand, six hundred ninety-six".