27666931016 has 32 divisors (see below), whose sum is σ = 56488752000. Its totient is φ = 12653476416.

The previous prime is 27666931009. The next prime is 27666931031. The reversal of 27666931016 is 61013966672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3133856 + ... + 3142671.

It is an arithmetic number, because the mean of its divisors is an integer number (1765273500).

Almost surely, 2^27666931016 is an apocalyptic number.

It is an amenable number.

27666931016 is an abundant number, since it is smaller than the sum of its proper divisors (28821820984).

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

27666931016 is a wasteful number, since it uses less digits than its factorization.

27666931016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276581 (or 6276577 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 27666931016 in words is "twenty-seven billion, six hundred sixty-six million, nine hundred thirty-one thousand, sixteen".