66575037 has 8 divisors (see below), whose sum is σ = 88879680. Its totient is φ = 44326880.

The previous prime is 66575027. The next prime is 66575057. The reversal of 66575037 is 73057566.

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 66575037 - 2⁷ = 66574909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66574986 and 66575004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66575027) 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, 11289 + ... + 16142.

It is an arithmetic number, because the mean of its divisors is an integer number (11109960).

Almost surely, 2^66575037 is an apocalyptic number.

It is an amenable number.

66575037 is a deficient number, since it is larger than the sum of its proper divisors (22304643).

66575037 is a wasteful number, since it uses less digits than its factorization.

66575037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28243.

The product of its (nonzero) digits is 132300, while the sum is 39.

The square root of 66575037 is about 8159.3527316816. The cubic root of 66575037 is about 405.2942778158.

The spelling of 66575037 in words is "sixty-six million, five hundred seventy-five thousand, thirty-seven".