5445643320511 has 8 divisors (see below), whose sum is σ = 5594148657680. Its totient is φ = 5297207761728.

The previous prime is 5445643320461. The next prime is 5445643320521. The reversal of 5445643320511 is 1150233465445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5445643320511 - 2¹⁵ = 5445643287743 is a prime.

It is a super-2 number, since 2×5445643320511² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5445643320521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17286366 + ... + 17598571.

It is an arithmetic number, because the mean of its divisors is an integer number (699268582210).

Almost surely, 2^{5445643320511} is an apocalyptic number.

5445643320511 is a deficient number, since it is larger than the sum of its proper divisors (148505337169).

5445643320511 is a wasteful number, since it uses less digits than its factorization.

5445643320511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34889193.

The product of its (nonzero) digits is 864000, while the sum is 43.

Adding to 5445643320511 its reverse (1150233465445), we get a palindrome (6595876785956).

The spelling of 5445643320511 in words is "five trillion, four hundred forty-five billion, six hundred forty-three million, three hundred twenty thousand, five hundred eleven".