855555555547 has 16 divisors (see below), whose sum is σ = 1066718016000. Its totient is φ = 666634573440.

The previous prime is 855555555539. The next prime is 855555555563. The reversal of 855555555547 is 745555555558.

855555555547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 855555555547 - 2³ = 855555555539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855555558547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410354 + ... + 1923592.

It is an arithmetic number, because the mean of its divisors is an integer number (66669876000).

Almost surely, 2^855555555547 is an apocalyptic number.

855555555547 is a deficient number, since it is larger than the sum of its proper divisors (211162460453).

855555555547 is a wasteful number, since it uses less digits than its factorization.

855555555547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534906.

The product of its digits is 437500000, while the sum is 64.

It can be divided in two parts, 8 and 55555555547, that added together give a palindrome (55555555555).

The spelling of 855555555547 in words is "eight hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred forty-seven".