163221015410444 has 12 divisors (see below), whose sum is σ = 285671345194704. Its totient is φ = 81600631069104.

The previous prime is 163221015410423. The next prime is 163221015410501. The reversal of 163221015410444 is 444014510122361.

It is a junction number, because it is equal to n+sod(n) for n = 163221015410398 and 163221015410407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2469121847 + ... + 2469187950.

It is an arithmetic number, because the mean of its divisors is an integer number (23805945432892).

Almost surely, 2^{163221015410444} is an apocalyptic number.

It is an amenable number.

163221015410444 is a deficient number, since it is larger than the sum of its proper divisors (122450329784260).

163221015410444 is a wasteful number, since it uses less digits than its factorization.

163221015410444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938318064 (or 4938318062 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 163221015410444 in words is "one hundred sixty-three trillion, two hundred twenty-one billion, fifteen million, four hundred ten thousand, four hundred forty-four".