855161158506 has 16 divisors (see below), whose sum is σ = 1710445767744. Its totient is φ = 285033144384.

The previous prime is 855161158493. The next prime is 855161158517. The reversal of 855161158506 is 605851161558.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5053606 + ... + 5220081.

It is an arithmetic number, because the mean of its divisors is an integer number (106902860484).

Almost surely, 2^855161158506 is an apocalyptic number.

855161158506 is an abundant number, since it is smaller than the sum of its proper divisors (855284609238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855161158506 is a wasteful number, since it uses less digits than its factorization.

855161158506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287565.

The product of its (nonzero) digits is 1440000, while the sum is 51.

The spelling of 855161158506 in words is "eight hundred fifty-five billion, one hundred sixty-one million, one hundred fifty-eight thousand, five hundred six".