66243342606051 has 32 divisors (see below), whose sum is σ = 95275062308160. Its totient is φ = 40698118416384.

The previous prime is 66243342606037. The next prime is 66243342606083. The reversal of 66243342606051 is 15060624334266.

It is not a de Polignac number, because 66243342606051 - 2¹⁴ = 66243342589667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66243342606011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160138855 + ... + 160551983.

It is an arithmetic number, because the mean of its divisors is an integer number (2977345697130).

Almost surely, 2^{66243342606051} is an apocalyptic number.

66243342606051 is a deficient number, since it is larger than the sum of its proper divisors (29031719702109).

66243342606051 is a wasteful number, since it uses less digits than its factorization.

66243342606051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419895.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 66243342606051 in words is "sixty-six trillion, two hundred forty-three billion, three hundred forty-two million, six hundred six thousand, fifty-one".