66727306733053 has 4 divisors (see below), whose sum is σ = 66828562130880. Its totient is φ = 66626051335228.

The previous prime is 66727306733051. The next prime is 66727306733063. The reversal of 66727306733053 is 35033760372766.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66727306733053 - 2¹ = 66727306733051 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 (66727306733051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50627697925 + ... + 50627699242.

It is an arithmetic number, because the mean of its divisors is an integer number (16707140532720).

Almost surely, 2^{66727306733053} is an apocalyptic number.

It is an amenable number.

66727306733053 is a deficient number, since it is larger than the sum of its proper divisors (101255397827).

66727306733053 is a wasteful number, since it uses less digits than its factorization.

66727306733053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101255397826.

The product of its (nonzero) digits is 60011280, while the sum is 58.

The spelling of 66727306733053 in words is "sixty-six trillion, seven hundred twenty-seven billion, three hundred six million, seven hundred thirty-three thousand, fifty-three".