66572741 has 8 divisors (see below), whose sum is σ = 70505664. Its totient is φ = 62726400.

The previous prime is 66572659. The next prime is 66572743. The reversal of 66572741 is 14727566.

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 66572741 - 2¹⁰ = 66571717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66572695 and 66572704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66572743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20060 + ... + 23141.

It is an arithmetic number, because the mean of its divisors is an integer number (8813208).

Almost surely, 2^66572741 is an apocalyptic number.

It is an amenable number.

66572741 is a deficient number, since it is larger than the sum of its proper divisors (3932923).

66572741 is a wasteful number, since it uses less digits than its factorization.

66572741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43291.

The product of its digits is 70560, while the sum is 38.

The square root of 66572741 is about 8159.2120330336. The cubic root of 66572741 is about 405.2896185801.

The spelling of 66572741 in words is "sixty-six million, five hundred seventy-two thousand, seven hundred forty-one".