8061515280 has 1120 divisors, whose sum is σ = 36431001600. Its totient is φ = 1646023680.

The previous prime is 8061515219. The next prime is 8061515291. The reversal of 8061515280 is 825151608.

8061515280 is a `hidden beast` number, since 8 + 0 + 61 + 515 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 260048865 + ... + 260048895.

It is an arithmetic number, because the mean of its divisors is an integer number (32527680).

Almost surely, 2^8061515280 is an apocalyptic number.

8061515280 is a gapful number since it is divisible by the number (80) 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 8061515280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18215500800).

8061515280 is an abundant number, since it is smaller than the sum of its proper divisors (28369486320).

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

8061515280 is a wasteful number, since it uses less digits than its factorization.

8061515280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 8061515280 is about 89785.9414385125. The cubic root of 8061515280 is about 2005.1131898379.

Adding to 8061515280 its reverse (825151608), we get a palindrome (8886666888).

The spelling of 8061515280 in words is "eight billion, sixty-one million, five hundred fifteen thousand, two hundred eighty".