13155543466 has 16 divisors (see below), whose sum is σ = 22501337544. Its totient is φ = 5714625024.

The previous prime is 13155543461. The next prime is 13155543497. The reversal of 13155543466 is 66434555131.

It can be written as a sum of positive squares in 4 ways, for example, as 12897009225 + 258534241 = 113565^2 + 16079^2 .

It is not an unprimeable number, because it can be changed into a prime (13155543461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14881395 + ... + 14882278.

Almost surely, 2^13155543466 is an apocalyptic number.

13155543466 is a deficient number, since it is larger than the sum of its proper divisors (9345794078).

13155543466 is a wasteful number, since it uses less digits than its factorization.

13155543466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29763705.

The product of its digits is 648000, while the sum is 43.

The spelling of 13155543466 in words is "thirteen billion, one hundred fifty-five million, five hundred forty-three thousand, four hundred sixty-six".