8615255040 has 704 divisors, whose sum is σ = 36315417600. Its totient is φ = 1895104512.

The previous prime is 8615255021. The next prime is 8615255119. The reversal of 8615255040 is 405525168.

8615255040 is a `hidden beast` number, since 8 + 61 + 5 + 2 + 550 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 8615254986 and 8615255004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28062567 + ... + 28062873.

It is an arithmetic number, because the mean of its divisors is an integer number (51584400).

Almost surely, 2^8615255040 is an apocalyptic number.

8615255040 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 8615255040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18157708800).

8615255040 is an abundant number, since it is smaller than the sum of its proper divisors (27700162560).

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

8615255040 is a wasteful number, since it uses less digits than its factorization.

8615255040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 8615255040 is about 92818.3981762237. The cubic root of 8615255040 is about 2050.0103144434.

The spelling of 8615255040 in words is "eight billion, six hundred fifteen million, two hundred fifty-five thousand, forty".