5456638366545 has 16 divisors (see below), whose sum is σ = 8732213825472. Its totient is φ = 2909676315840.

The previous prime is 5456638366507. The next prime is 5456638366547.

5456638366545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5456638366545 - 2¹⁷ = 5456638235473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5456638366547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33090826 + ... + 33255315.

It is an arithmetic number, because the mean of its divisors is an integer number (545763364092).

Almost surely, 2^{5456638366545} is an apocalyptic number.

It is an amenable number.

5456638366545 is a deficient number, since it is larger than the sum of its proper divisors (3275575458927).

5456638366545 is a wasteful number, since it uses less digits than its factorization.

5456638366545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66351632.

The product of its digits is 933120000, while the sum is 66.

The spelling of 5456638366545 in words is "five trillion, four hundred fifty-six billion, six hundred thirty-eight million, three hundred sixty-six thousand, five hundred forty-five".