27395661220 has 48 divisors (see below), whose sum is σ = 57962838528. Its totient is φ = 10876118400.

The previous prime is 27395661199. The next prime is 27395661247. The reversal of 27395661220 is 2216659372.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4143157 + ... + 4149763.

It is an arithmetic number, because the mean of its divisors is an integer number (1207559136).

Almost surely, 2^27395661220 is an apocalyptic number.

27395661220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27395661220 is an abundant number, since it is smaller than the sum of its proper divisors (30567177308).

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

27395661220 is a wasteful number, since it uses less digits than its factorization.

27395661220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140 (or 8138 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 27395661220 in words is "twenty-seven billion, three hundred ninety-five million, six hundred sixty-one thousand, two hundred twenty".