6455121088 has 56 divisors (see below), whose sum is σ = 14028633360. Its totient is φ = 2928768000.

The previous prime is 6455121073. The next prime is 6455121149. The reversal of 6455121088 is 8801215546.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6455121088.

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, 16663 + ... + 114838.

It is an arithmetic number, because the mean of its divisors is an integer number (250511310).

Almost surely, 2^6455121088 is an apocalyptic number.

It is an amenable number.

6455121088 is an abundant number, since it is smaller than the sum of its proper divisors (7573512272).

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

6455121088 is a wasteful number, since it uses less digits than its factorization.

6455121088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131585 (or 131575 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 6455121088 is about 80343.7681964196. The cubic root of 6455121088 is about 1861.9505002257.

The spelling of 6455121088 in words is "six billion, four hundred fifty-five million, one hundred twenty-one thousand, eighty-eight".