163455633265 has 8 divisors (see below), whose sum is σ = 196157038248. Its totient is φ = 130757654400.

The previous prime is 163455633251. The next prime is 163455633347. The reversal of 163455633265 is 562336554361.

163455633265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 57158768241 + 106296865024 = 239079^2 + 326032^2 .

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

It is not a de Polignac number, because 163455633265 - 2¹⁷ = 163455502193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750372 + ... + 943381.

It is an arithmetic number, because the mean of its divisors is an integer number (24519629781).

Almost surely, 2^163455633265 is an apocalyptic number.

It is an amenable number.

163455633265 is a deficient number, since it is larger than the sum of its proper divisors (32701404983).

163455633265 is a wasteful number, since it uses less digits than its factorization.

163455633265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713059.

The product of its digits is 5832000, while the sum is 49.

The spelling of 163455633265 in words is "one hundred sixty-three billion, four hundred fifty-five million, six hundred thirty-three thousand, two hundred sixty-five".