27725060664 has 48 divisors (see below), whose sum is σ = 85815665520. Its totient is φ = 7921445760.

The previous prime is 27725060639. The next prime is 27725060681. The reversal of 27725060664 is 46606052772.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 27504517 + ... + 27505524.

It is an arithmetic number, because the mean of its divisors is an integer number (1787826365).

Almost surely, 2^27725060664 is an apocalyptic number.

27725060664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27725060664 is an abundant number, since it is smaller than the sum of its proper divisors (58090604856).

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

27725060664 is a wasteful number, since it uses less digits than its factorization.

27725060664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55010060 (or 55010053 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 27725060664 in words is "twenty-seven billion, seven hundred twenty-five million, sixty thousand, six hundred sixty-four".