27248215560 has 128 divisors (see below), whose sum is σ = 84735072000. Its totient is φ = 7001394176.

The previous prime is 27248215537. The next prime is 27248215567. The reversal of 27248215560 is 6551284272.

It is a super-2 number, since 2×27248215560² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27248215567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1763629 + ... + 1779011.

It is an arithmetic number, because the mean of its divisors is an integer number (661992750).

Almost surely, 2^27248215560 is an apocalyptic number.

27248215560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27248215560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42367536000).

27248215560 is an abundant number, since it is smaller than the sum of its proper divisors (57486856440).

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

27248215560 is a wasteful number, since it uses less digits than its factorization.

27248215560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15935 (or 15931 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 27248215560 in words is "twenty-seven billion, two hundred forty-eight million, two hundred fifteen thousand, five hundred sixty".