163245356776 has 16 divisors (see below), whose sum is σ = 306905652900. Its totient is φ = 81403849344.

The previous prime is 163245356749. The next prime is 163245356801. The reversal of 163245356776 is 677653542361.

It can be written as a sum of positive squares in 2 ways, for example, as 147552783876 + 15692572900 = 384126^2 + 125270^2 .

It is a super-3 number, since 3×163245356776³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27350461 + ... + 27356428.

Almost surely, 2^163245356776 is an apocalyptic number.

It is an amenable number.

163245356776 is a deficient number, since it is larger than the sum of its proper divisors (143660296124).

163245356776 is a wasteful number, since it uses less digits than its factorization.

163245356776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54707268 (or 54707264 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 55.

The spelling of 163245356776 in words is "one hundred sixty-three billion, two hundred forty-five million, three hundred fifty-six thousand, seven hundred seventy-six".