66006060051 has 4 divisors (see below), whose sum is σ = 88008080072. Its totient is φ = 44004040032.

The previous prime is 66006060049. The next prime is 66006060061. The reversal of 66006060051 is 15006060066.

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

It is not a de Polignac number, because 66006060051 - 2¹ = 66006060049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66006060011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11001010006 + ... + 11001010011.

It is an arithmetic number, because the mean of its divisors is an integer number (22002020018).

Almost surely, 2^66006060051 is an apocalyptic number.

66006060051 is a deficient number, since it is larger than the sum of its proper divisors (22002020021).

66006060051 is a wasteful number, since it uses less digits than its factorization.

66006060051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22002020020.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 66006060051 in words is "sixty-six billion, six million, sixty thousand, fifty-one".