66008413 has 8 divisors (see below), whose sum is σ = 72504000. Its totient is φ = 59815008.

The previous prime is 66008389. The next prime is 66008417. The reversal of 66008413 is 31480066.

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 66008413 - 2⁹ = 66007901 is a prime.

It is a super-2 number, since 2×66008413² = 8714221173557138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66008417) 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, 75088 + ... + 75961.

It is an arithmetic number, because the mean of its divisors is an integer number (9063000).

Almost surely, 2^66008413 is an apocalyptic number.

It is an amenable number.

66008413 is a deficient number, since it is larger than the sum of its proper divisors (6495587).

66008413 is a wasteful number, since it uses less digits than its factorization.

66008413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151091.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 66008413 is about 8124.5561724934. The cubic root of 66008413 is about 404.1411725207.

Adding to 66008413 its reverse (31480066), we get a palindrome (97488479).

The spelling of 66008413 in words is "sixty-six million, eight thousand, four hundred thirteen".