8115055420 has 24 divisors (see below), whose sum is σ = 17938544400. Its totient is φ = 3075178752.

The previous prime is 8115055381. The next prime is 8115055447. The reversal of 8115055420 is 245505118.

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, 10677325 + ... + 10678084.

It is an arithmetic number, because the mean of its divisors is an integer number (747439350).

Almost surely, 2^8115055420 is an apocalyptic number.

It is an amenable number.

8115055420 is an abundant number, since it is smaller than the sum of its proper divisors (9823488980).

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

8115055420 is a wasteful number, since it uses less digits than its factorization.

8115055420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355437 (or 21355435 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 8115055420 is about 90083.6023924443. The cubic root of 8115055420 is about 2009.5423510274.

The spelling of 8115055420 in words is "eight billion, one hundred fifteen million, fifty-five thousand, four hundred twenty".