27147601660 has 48 divisors (see below), whose sum is σ = 60238886400. Its totient is φ = 10248358464.

The previous prime is 27147601651. The next prime is 27147601667. The reversal of 27147601660 is 6610674172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27147601667) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35880 + ... + 235759.

It is an arithmetic number, because the mean of its divisors is an integer number (1254976800).

Almost surely, 2^27147601660 is an apocalyptic number.

27147601660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27147601660 is an abundant number, since it is smaller than the sum of its proper divisors (33091284740).

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

27147601660 is a wasteful number, since it uses less digits than its factorization.

27147601660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271930 (or 271928 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 27147601660 in words is "twenty-seven billion, one hundred forty-seven million, six hundred one thousand, six hundred sixty".