855800008558 has 32 divisors (see below), whose sum is σ = 1486588502880. Its totient is φ = 365176412160.

The previous prime is 855800008549. The next prime is 855800008573.

It is a happy number.

855800008558 is nontrivially palindromic in base 10.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2795691 + ... + 3086662.

It is an arithmetic number, because the mean of its divisors is an integer number (46455890715).

Almost surely, 2^855800008558 is an apocalyptic number.

855800008558 is a deficient number, since it is larger than the sum of its proper divisors (630788494322).

855800008558 is a wasteful number, since it uses less digits than its factorization.

855800008558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882772.

The product of its (nonzero) digits is 2560000, while the sum is 52.

It can be divided in two parts, 85580000 and 8558, that multiplied together give a square (732393640000 = 855800²).

The spelling of 855800008558 in words is "eight hundred fifty-five billion, eight hundred million, eight thousand, five hundred fifty-eight".