66055015266 has 8 divisors (see below), whose sum is σ = 132110030544. Its totient is φ = 22018338420.

The previous prime is 66055015259. The next prime is 66055015267. The reversal of 66055015266 is 66251055066.

It is a sphenic number, since it is the product of 3 distinct primes.

66055015266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (66055015267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504584600 + ... + 5504584611.

It is an arithmetic number, because the mean of its divisors is an integer number (16513753818).

Almost surely, 2^66055015266 is an apocalyptic number.

66055015266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66055015266 is a wasteful number, since it uses less digits than its factorization.

66055015266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11009169216.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 66055015266 in words is "sixty-six billion, fifty-five million, fifteen thousand, two hundred sixty-six".