27215572116 has 24 divisors (see below), whose sum is σ = 65692761120. Its totient is φ = 8759034592.

The previous prime is 27215572099. The next prime is 27215572121. The reversal of 27215572116 is 61127551272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39102486 + ... + 39103181.

It is an arithmetic number, because the mean of its divisors is an integer number (2737198380).

Almost surely, 2^27215572116 is an apocalyptic number.

It is an amenable number.

27215572116 is an abundant number, since it is smaller than the sum of its proper divisors (38477189004).

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

27215572116 is a wasteful number, since it uses less digits than its factorization.

27215572116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78205703 (or 78205701 counting only the distinct ones).

The product of its digits is 58800, while the sum is 39.

The spelling of 27215572116 in words is "twenty-seven billion, two hundred fifteen million, five hundred seventy-two thousand, one hundred sixteen".