66425344711 has 6 divisors (see below), whose sum is σ = 73012982336. Its totient is φ = 60386676900.

The previous prime is 66425344709. The next prime is 66425344721. The reversal of 66425344711 is 11744352466.

It is not a de Polignac number, because 66425344711 - 2¹ = 66425344709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66425344721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274484775 + ... + 274485016.

Almost surely, 2^66425344711 is an apocalyptic number.

66425344711 is a deficient number, since it is larger than the sum of its proper divisors (6587637625).

66425344711 is a wasteful number, since it uses less digits than its factorization.

66425344711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548969813 (or 548969802 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

It can be divided in two parts, 664253 and 44711, that added together give a square (708964 = 842²).

The spelling of 66425344711 in words is "sixty-six billion, four hundred twenty-five million, three hundred forty-four thousand, seven hundred eleven".