161464430404 has 24 divisors (see below), whose sum is σ = 298711052640. Its totient is φ = 76154889024.

The previous prime is 161464430381. The next prime is 161464430419. The reversal of 161464430404 is 404034464161.

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 7 ways as a sum of consecutive naturals, for example, 4541374 + ... + 4576789.

It is an arithmetic number, because the mean of its divisors is an integer number (12446293860).

Almost surely, 2^161464430404 is an apocalyptic number.

It is an amenable number.

161464430404 is a deficient number, since it is larger than the sum of its proper divisors (137246622236).

161464430404 is a wasteful number, since it uses less digits than its factorization.

161464430404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9118419 (or 9118417 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 161464430404 its reverse (404034464161), we get a palindrome (565498894565).

The spelling of 161464430404 in words is "one hundred sixty-one billion, four hundred sixty-four million, four hundred thirty thousand, four hundred four".