10550400543 has 12 divisors (see below), whose sum is σ = 15264832128. Its totient is φ = 7021893600.

The previous prime is 10550400491. The next prime is 10550400547. The reversal of 10550400543 is 34500405501.

10550400543 is a `hidden beast` number, since 105 + 504 + 0 + 0 + 54 + 3 = 666.

It is not a de Polignac number, because 10550400543 - 2⁹ = 10550400031 is a prime.

It is a super-2 number, since 2×10550400543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550400547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969855 + ... + 980672.

It is an arithmetic number, because the mean of its divisors is an integer number (1272069344).

Almost surely, 2^10550400543 is an apocalyptic number.

10550400543 is a deficient number, since it is larger than the sum of its proper divisors (4714431585).

10550400543 is a wasteful number, since it uses less digits than its factorization.

10550400543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951134 (or 1951131 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 10550400543 in words is "ten billion, five hundred fifty million, four hundred thousand, five hundred forty-three".