16161632394 has 8 divisors (see below), whose sum is σ = 32323264800. Its totient is φ = 5387210796.

The previous prime is 16161632359. The next prime is 16161632521. The reversal of 16161632394 is 49323616161.

It is a happy number.

16161632394 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.

16161632394 is an admirable number.

It is a super-2 number, since 2×16161632394² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346802694 + ... + 1346802705.

It is an arithmetic number, because the mean of its divisors is an integer number (4040408100).

Almost surely, 2^16161632394 is an apocalyptic number.

16161632394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16161632394 is a wasteful number, since it uses less digits than its factorization.

16161632394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693605404.

The product of its digits is 139968, while the sum is 42.

The spelling of 16161632394 in words is "sixteen billion, one hundred sixty-one million, six hundred thirty-two thousand, three hundred ninety-four".