5540366514561 has 16 divisors (see below), whose sum is σ = 7493759981568. Its totient is φ = 3640310920400.

The previous prime is 5540366514509. The next prime is 5540366514581. The reversal of 5540366514561 is 1654156630455.

It is a cyclic number.

It is not a de Polignac number, because 5540366514561 - 2⁶ = 5540366514497 is a prime.

It is a super-2 number, since 2×5540366514561² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5540366514581) 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, 3819855 + ... + 5066756.

It is an arithmetic number, because the mean of its divisors is an integer number (468359998848).

Almost surely, 2^{5540366514561} is an apocalyptic number.

It is an amenable number.

5540366514561 is a deficient number, since it is larger than the sum of its proper divisors (1953393467007).

5540366514561 is a wasteful number, since it uses less digits than its factorization.

5540366514561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8889612.

The product of its (nonzero) digits is 6480000, while the sum is 51.

The spelling of 5540366514561 in words is "five trillion, five hundred forty billion, three hundred sixty-six million, five hundred fourteen thousand, five hundred sixty-one".