5531381366 has 48 divisors (see below), whose sum is σ = 10123271136. Its totient is φ = 2255831424.

The previous prime is 5531381347. The next prime is 5531381369. The reversal of 5531381366 is 6631831355.

It is a super-2 number, since 2×5531381366² = 61192359632264051912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531381369) 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 23 ways as a sum of consecutive naturals, for example, 437810 + ... + 450266.

It is an arithmetic number, because the mean of its divisors is an integer number (210901482).

Almost surely, 2^5531381366 is an apocalyptic number.

5531381366 is a deficient number, since it is larger than the sum of its proper divisors (4591889770).

5531381366 is a wasteful number, since it uses less digits than its factorization.

5531381366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12693 (or 12686 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 5531381366 is about 74373.2570619305. The cubic root of 5531381366 is about 1768.5249892509.

The spelling of 5531381366 in words is "five billion, five hundred thirty-one million, three hundred eighty-one thousand, three hundred sixty-six".