163087255556 has 12 divisors (see below), whose sum is σ = 286061828892. Its totient is φ = 81355304448.

The previous prime is 163087255549. The next prime is 163087255567. The reversal of 163087255556 is 655552780361.

It can be written as a sum of positive squares in 2 ways, for example, as 26027368900 + 137059886656 = 161330^2 + 370216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163087255498 and 163087255507.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 47078885 + ... + 47082348.

It is an arithmetic number, because the mean of its divisors is an integer number (23838485741).

Almost surely, 2^163087255556 is an apocalyptic number.

It is an amenable number.

163087255556 is a deficient number, since it is larger than the sum of its proper divisors (122974573336).

163087255556 is a wasteful number, since it uses less digits than its factorization.

163087255556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94161670 (or 94161668 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 53.

The spelling of 163087255556 in words is "one hundred sixty-three billion, eighty-seven million, two hundred fifty-five thousand, five hundred fifty-six".