66373727 has 8 divisors (see below), whose sum is σ = 76032000. Its totient is φ = 56759544.

The previous prime is 66373679. The next prime is 66373733. The reversal of 66373727 is 72737366.

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

It is a cyclic number.

It is not a de Polignac number, because 66373727 - 2⁸ = 66373471 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 (66373787) 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, 7727 + ... + 13872.

It is an arithmetic number, because the mean of its divisors is an integer number (9504000).

Almost surely, 2^66373727 is an apocalyptic number.

66373727 is a deficient number, since it is larger than the sum of its proper divisors (9658273).

66373727 is a wasteful number, since it uses less digits than its factorization.

66373727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22045.

The product of its digits is 222264, while the sum is 41.

The square root of 66373727 is about 8147.0072419263. The cubic root of 66373727 is about 404.8853549401.

The spelling of 66373727 in words is "sixty-six million, three hundred seventy-three thousand, seven hundred twenty-seven".