551432234155 has 16 divisors (see below), whose sum is σ = 725615223264. Its totient is φ = 398963681280.

The previous prime is 551432234147. The next prime is 551432234203.

551432234155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551432234155 - 2³ = 551432234147 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 25963584 + ... + 25984813.

It is an arithmetic number, because the mean of its divisors is an integer number (45350951454).

Almost surely, 2^551432234155 is an apocalyptic number.

551432234155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551432234155 is a deficient number, since it is larger than the sum of its proper divisors (174182989109).

551432234155 is a wasteful number, since it uses less digits than its factorization.

551432234155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51948606.

The product of its digits is 360000, while the sum is 40.

It can be divided in two parts, 551432 and 234155, that added together give a palindrome (785587).

The spelling of 551432234155 in words is "five hundred fifty-one billion, four hundred thirty-two million, two hundred thirty-four thousand, one hundred fifty-five".