163225869376144 has 45 divisors (see below), whose sum is σ = 323780173352643. Its totient is φ = 79713886279776.

The previous prime is 163225869376081. The next prime is 163225869376267. The reversal of 163225869376144 is 441673968522361.

The square root of 163225869376144 is 12775988.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163225869376144.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2197432797 + ... + 2197507075.

Almost surely, 2^{163225869376144} is an apocalyptic number.

163225869376144 is the 12775988-th square number.

It is an amenable number.

163225869376144 is a deficient number, since it is larger than the sum of its proper divisors (160554303976499).

163225869376144 is an frugal number, since it uses more digits than its factorization.

163225869376144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148652 (or 74324 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 67.

The spelling of 163225869376144 in words is "one hundred sixty-three trillion, two hundred twenty-five billion, eight hundred sixty-nine million, three hundred seventy-six thousand, one hundred forty-four".