163573400273 has 8 divisors (see below), whose sum is σ = 165085229760. Its totient is φ = 162061773840.

The previous prime is 163573400227. The next prime is 163573400279. The reversal of 163573400273 is 372004375361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163573400273 - 2¹⁸ = 163573138129 is a prime.

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 163573400273.

It is not an unprimeable number, because it can be changed into a prime (163573400279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918868 + ... + 2002298.

It is an arithmetic number, because the mean of its divisors is an integer number (20635653720).

Almost surely, 2^163573400273 is an apocalyptic number.

It is an amenable number.

163573400273 is a deficient number, since it is larger than the sum of its proper divisors (1511829487).

163573400273 is a wasteful number, since it uses less digits than its factorization.

163573400273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101527.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 163573400273 in words is "one hundred sixty-three billion, five hundred seventy-three million, four hundred thousand, two hundred seventy-three".