66277477266 has 96 divisors (see below), whose sum is σ = 179324363904. Its totient is φ = 15890688000.

The previous prime is 66277477249. The next prime is 66277477289.

66277477266 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 435535 + ... + 567666.

It is an arithmetic number, because the mean of its divisors is an integer number (1867962124).

Almost surely, 2^66277477266 is an apocalyptic number.

66277477266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66277477266 is an abundant number, since it is smaller than the sum of its proper divisors (113046886638).

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

66277477266 is a wasteful number, since it uses less digits than its factorization.

66277477266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003248 (or 1003237 counting only the distinct ones).

The product of its digits is 49787136, while the sum is 60.

The spelling of 66277477266 in words is "sixty-six billion, two hundred seventy-seven million, four hundred seventy-seven thousand, two hundred sixty-six".