161217711446 has 8 divisors (see below), whose sum is σ = 263810800584. Its totient is φ = 73280777920.

The previous prime is 161217711439. The next prime is 161217711463. The reversal of 161217711446 is 644117712161.

161217711446 is digitally balanced in base 3, 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.

It is a congruent number.

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, 3664038875 + ... + 3664038918.

It is an arithmetic number, because the mean of its divisors is an integer number (32976350073).

Almost surely, 2^161217711446 is an apocalyptic number.

161217711446 is a deficient number, since it is larger than the sum of its proper divisors (102593089138).

161217711446 is a wasteful number, since it uses less digits than its factorization.

161217711446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328077806.

The product of its digits is 56448, while the sum is 41.

The spelling of 161217711446 in words is "one hundred sixty-one billion, two hundred seventeen million, seven hundred eleven thousand, four hundred forty-six".