27040289666 has 24 divisors (see below), whose sum is σ = 44211417984. Its totient is φ = 12397460400.

The previous prime is 27040289663. The next prime is 27040289677. The reversal of 27040289666 is 66698204072.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27040289663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213866 + ... + 315941.

It is an arithmetic number, because the mean of its divisors is an integer number (1842142416).

Almost surely, 2^27040289666 is an apocalyptic number.

27040289666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

27040289666 is a deficient number, since it is larger than the sum of its proper divisors (17171128318).

27040289666 is a wasteful number, since it uses less digits than its factorization.

27040289666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529986 (or 529973 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 27040289666 in words is "twenty-seven billion, forty million, two hundred eighty-nine thousand, six hundred sixty-six".