8061505536 has 416 divisors, whose sum is σ = 26892691200. Its totient is φ = 2095054848.

The previous prime is 8061505523. The next prime is 8061505537. The reversal of 8061505536 is 6355051608.

It is a junction number, because it is equal to n+sod(n) for n = 8061505494 and 8061505503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061505537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54103990 + ... + 54104138.

Almost surely, 2^8061505536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8061505536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13446345600).

8061505536 is an abundant number, since it is smaller than the sum of its proper divisors (18831185664).

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

8061505536 is a wasteful number, since it uses less digits than its factorization.

8061505536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 8061505536 is about 89785.8871761036. The cubic root of 8061505536 is about 2005.1123819737.

The spelling of 8061505536 in words is "eight billion, sixty-one million, five hundred five thousand, five hundred thirty-six".