854233297155 has 128 divisors (see below), whose sum is σ = 1782300672000. Its totient is φ = 388016044416.

The previous prime is 854233297111. The next prime is 854233297231. The reversal of 854233297155 is 551792332458.

854233297155 is a `hidden beast` number, since 8 + 542 + 3 + 3 + 2 + 97 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 854233297155 - 2⁶ = 854233297091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7211134 + ... + 7328636.

It is an arithmetic number, because the mean of its divisors is an integer number (13924224000).

Almost surely, 2^854233297155 is an apocalyptic number.

854233297155 is an abundant number, since it is smaller than the sum of its proper divisors (928067374845).

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

854233297155 is a wasteful number, since it uses less digits than its factorization.

854233297155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117695 (or 117675 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 854233297155 in words is "eight hundred fifty-four billion, two hundred thirty-three million, two hundred ninety-seven thousand, one hundred fifty-five".