8115552000 has 720 divisors, whose sum is σ = 31483355904. Its totient is φ = 2073600000.

The previous prime is 8115551971. The next prime is 8115552041. The reversal of 8115552000 is 2555118.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 80351950 + ... + 80352050.

Almost surely, 2^8115552000 is an apocalyptic number.

8115552000 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 8115552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15741677952).

8115552000 is an abundant number, since it is smaller than the sum of its proper divisors (23367803904).

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

8115552000 is a wasteful number, since it uses less digits than its factorization.

8115552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 8115552000 is about 90086.3585677654. The cubic root of 8115552000 is about 2009.5833397878.

It can be divided in two parts, 81 and 15552000, that multiplied together give a cube (1259712000 = 1080³).

The spelling of 8115552000 in words is "eight billion, one hundred fifteen million, five hundred fifty-two thousand".