66038006 has 4 divisors (see below), whose sum is σ = 99057012. Its totient is φ = 33019002.

The previous prime is 66037997. The next prime is 66038033. The reversal of 66038006 is 60083066.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×66038006² = 8722036472912072, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66038006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16509500 + ... + 16509503.

It is an arithmetic number, because the mean of its divisors is an integer number (24764253).

Almost surely, 2^66038006 is an apocalyptic number.

66038006 is a deficient number, since it is larger than the sum of its proper divisors (33019006).

66038006 is a wasteful number, since it uses less digits than its factorization.

66038006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33019005.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66038006 is about 8126.3771755931. The cubic root of 66038006 is about 404.2015585753.

The spelling of 66038006 in words is "sixty-six million, thirty-eight thousand, six".