551244442155 has 16 divisors (see below), whose sum is σ = 962172117504. Its totient is φ = 267270032480.

The previous prime is 551244442103. The next prime is 551244442159.

551244442155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551244442155 - 2¹³ = 551244433963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551244442159) by changing a digit.

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, 1670437539 + ... + 1670437868.

It is an arithmetic number, because the mean of its divisors is an integer number (60135757344).

Almost surely, 2^551244442155 is an apocalyptic number.

551244442155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551244442155 is a deficient number, since it is larger than the sum of its proper divisors (410927675349).

551244442155 is a wasteful number, since it uses less digits than its factorization.

551244442155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340875426.

The product of its digits is 640000, while the sum is 42.

It can be divided in two parts, 551244 and 442155, that added together give a palindrome (993399).

The spelling of 551244442155 in words is "five hundred fifty-one billion, two hundred forty-four million, four hundred forty-two thousand, one hundred fifty-five".