66050005 has 8 divisors (see below), whose sum is σ = 90582912. Its totient is φ = 45291408.

The previous prime is 66049999. The next prime is 66050027. The reversal of 66050005 is 50005066.

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 66050005 - 2¹⁹ = 65525717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943537 + ... + 943606.

It is an arithmetic number, because the mean of its divisors is an integer number (11322864).

Almost surely, 2^66050005 is an apocalyptic number.

It is an amenable number.

66050005 is a deficient number, since it is larger than the sum of its proper divisors (24532907).

66050005 is a wasteful number, since it uses less digits than its factorization.

66050005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887155.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 66050005 is about 8127.1154169238. The cubic root of 66050005 is about 404.2260380181.

The spelling of 66050005 in words is "sixty-six million, fifty thousand, five".