27666301845 has 48 divisors (see below), whose sum is σ = 55454232960. Its totient is φ = 11674567296.

The previous prime is 27666301811. The next prime is 27666301849. The reversal of 27666301845 is 54810366672.

It is not a de Polignac number, because 27666301845 - 2¹⁶ = 27666236309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27666301794 and 27666301803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27666301849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1438185 + ... + 1457294.

It is an arithmetic number, because the mean of its divisors is an integer number (1155296520).

Almost surely, 2^27666301845 is an apocalyptic number.

It is an amenable number.

27666301845 is an abundant number, since it is smaller than the sum of its proper divisors (27787931115).

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

27666301845 is a wasteful number, since it uses less digits than its factorization.

27666301845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895514 (or 2895507 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 27666301845 in words is "twenty-seven billion, six hundred sixty-six million, three hundred one thousand, eight hundred forty-five".