10643654775543 has 16 divisors (see below), whose sum is σ = 14683622976000. Its totient is φ = 6849818874080.

The previous prime is 10643654775539. The next prime is 10643654775553. The reversal of 10643654775543 is 34557745634601.

It is a cyclic number.

It is not a de Polignac number, because 10643654775543 - 2² = 10643654775539 is a prime.

It is a super-2 number, since 2×10643654775543² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643654775553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10860243 + ... + 11799668.

It is an arithmetic number, because the mean of its divisors is an integer number (917726436000).

Almost surely, 2^{10643654775543} is an apocalyptic number.

10643654775543 is a deficient number, since it is larger than the sum of its proper divisors (4039968200457).

10643654775543 is a wasteful number, since it uses less digits than its factorization.

10643654775543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22665342.

The product of its (nonzero) digits is 127008000, while the sum is 60.

The spelling of 10643654775543 in words is "ten trillion, six hundred forty-three billion, six hundred fifty-four million, seven hundred seventy-five thousand, five hundred forty-three".