66113005 has 24 divisors (see below), whose sum is σ = 92647800. Its totient is φ = 45158400.

The previous prime is 66112979. The next prime is 66113041. The reversal of 66113005 is 50031166.

It can be written as a sum of positive squares in 4 ways, for example, as 18957316 + 47155689 = 4354^2 + 6867^2 .

It is not a de Polignac number, because 66113005 - 2¹⁵ = 66080237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 109705 + ... + 110305.

It is an arithmetic number, because the mean of its divisors is an integer number (3860325).

Almost surely, 2^66113005 is an apocalyptic number.

It is an amenable number.

66113005 is a deficient number, since it is larger than the sum of its proper divisors (26534795).

66113005 is a wasteful number, since it uses less digits than its factorization.

66113005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 66113005 is about 8130.9904070783. The cubic root of 66113005 is about 404.3545171804.

The spelling of 66113005 in words is "sixty-six million, one hundred thirteen thousand, five".