66306344343 has 16 divisors (see below), whose sum is σ = 96270556800. Its totient is φ = 40433631840.

The previous prime is 66306344339. The next prime is 66306344369. The reversal of 66306344343 is 34344360366.

It is a happy number.

66306344343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66306344343 - 2² = 66306344339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66306344295 and 66306344304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66306344393) 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, 20054713 + ... + 20058018.

It is an arithmetic number, because the mean of its divisors is an integer number (6016909800).

Almost surely, 2^66306344343 is an apocalyptic number.

66306344343 is a deficient number, since it is larger than the sum of its proper divisors (29964212457).

66306344343 is a wasteful number, since it uses less digits than its factorization.

66306344343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40112782.

The product of its (nonzero) digits is 1119744, while the sum is 42.

The spelling of 66306344343 in words is "sixty-six billion, three hundred six million, three hundred forty-four thousand, three hundred forty-three".