27516402664 has 16 divisors (see below), whose sum is σ = 51595020000. Its totient is φ = 13757730672.

The previous prime is 27516402653. The next prime is 27516402671. The reversal of 27516402664 is 46620461572.

It is a self number, because there is not a number n which added to its sum of digits gives 27516402664.

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 3 ways as a sum of consecutive naturals, for example, 401587 + ... + 465085.

It is an arithmetic number, because the mean of its divisors is an integer number (3224688750).

Almost surely, 2^27516402664 is an apocalyptic number.

It is an amenable number.

27516402664 is a deficient number, since it is larger than the sum of its proper divisors (24078617336).

27516402664 is a wasteful number, since it uses less digits than its factorization.

27516402664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117672 (or 117668 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 27516402664 in words is "twenty-seven billion, five hundred sixteen million, four hundred two thousand, six hundred sixty-four".