163623356852775 has 48 divisors (see below), whose sum is σ = 277127298030240. Its totient is φ = 85135757977600.

The previous prime is 163623356852749. The next prime is 163623356852783. The reversal of 163623356852775 is 577258653326361.

It is not a de Polignac number, because 163623356852775 - 2²² = 163623352658471 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173121691 + ... + 174064259.

It is an arithmetic number, because the mean of its divisors is an integer number (5773485375630).

Almost surely, 2^{163623356852775} is an apocalyptic number.

163623356852775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163623356852775 is a deficient number, since it is larger than the sum of its proper divisors (113503941177465).

163623356852775 is a wasteful number, since it uses less digits than its factorization.

163623356852775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999076 (or 999071 counting only the distinct ones).

The product of its digits is 1143072000, while the sum is 69.

The spelling of 163623356852775 in words is "one hundred sixty-three trillion, six hundred twenty-three billion, three hundred fifty-six million, eight hundred fifty-two thousand, seven hundred seventy-five".