163073456 has 80 divisors (see below), whose sum is σ = 397307904. Its totient is φ = 63113472.

The previous prime is 163073453. The next prime is 163073479. The reversal of 163073456 is 654370361.

It is not an unprimeable number, because it can be changed into a prime (163073453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67241 + ... + 69623.

Almost surely, 2^163073456 is an apocalyptic number.

163073456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163073456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198653952).

163073456 is an abundant number, since it is smaller than the sum of its proper divisors (234234448).

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

163073456 is a wasteful number, since it uses less digits than its factorization.

163073456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 163073456 is about 12770.0217697543. The cubic root of 163073456 is about 546.3376015497.

The spelling of 163073456 in words is "one hundred sixty-three million, seventy-three thousand, four hundred fifty-six".