66005005001610 has 16 divisors (see below), whose sum is σ = 158412012003936. Its totient is φ = 17601334667088.

The previous prime is 66005005001569. The next prime is 66005005001623. The reversal of 66005005001610 is 1610050050066.

66005005001610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66005005001610² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2200166833387 = 66005005001610 / (6 + 6 + 0 + 0 + 5 + 0 + 0 + 5 + 0 + 0 + 1 + 6 + 1 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100083416664 + ... + 1100083416723.

It is an arithmetic number, because the mean of its divisors is an integer number (9900750750246).

Almost surely, 2^{66005005001610} is an apocalyptic number.

66005005001610 is an abundant number, since it is smaller than the sum of its proper divisors (92407007002326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66005005001610 is a wasteful number, since it uses less digits than its factorization.

66005005001610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200166833397.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 66005005001610 its reverse (1610050050066), we get a palindrome (67615055051676).

The spelling of 66005005001610 in words is "sixty-six trillion, five billion, five million, one thousand, six hundred ten".