551436634155 has 256 divisors, whose sum is σ = 1062259660800. Its totient is φ = 243378432000.

The previous prime is 551436634141. The next prime is 551436634157.

551436634155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551436634155 - 2⁸ = 551436633899 is a prime.

It is a super-2 number, since 2×551436634155² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551436634157) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1417574701 + ... + 1417575089.

It is an arithmetic number, because the mean of its divisors is an integer number (4149451800).

Almost surely, 2^551436634155 is an apocalyptic number.

551436634155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551436634155 is a deficient number, since it is larger than the sum of its proper divisors (510823026645).

551436634155 is a wasteful number, since it uses less digits than its factorization.

551436634155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 565 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 48.

The spelling of 551436634155 in words is "five hundred fifty-one billion, four hundred thirty-six million, six hundred thirty-four thousand, one hundred fifty-five".