163087255555 has 8 divisors (see below), whose sum is σ = 223662521952. Its totient is φ = 111831260928.

The previous prime is 163087255549. The next prime is 163087255567. The reversal of 163087255555 is 555552780361.

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 163087255555 - 2³ = 163087255547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2329817902 + ... + 2329817971.

It is an arithmetic number, because the mean of its divisors is an integer number (27957815244).

Almost surely, 2^163087255555 is an apocalyptic number.

163087255555 is a deficient number, since it is larger than the sum of its proper divisors (60575266397).

163087255555 is an equidigital number, since it uses as much as digits as its factorization.

163087255555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659635885.

The product of its (nonzero) digits is 6300000, while the sum is 52.

The spelling of 163087255555 in words is "one hundred sixty-three billion, eighty-seven million, two hundred fifty-five thousand, five hundred fifty-five".