8995691520 has 440 divisors, whose sum is σ = 32694684000. Its totient is φ = 2364899328.

The previous prime is 8995691449. The next prime is 8995691539. The reversal of 8995691520 is 251965998.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45204381 + ... + 45204579.

It is an arithmetic number, because the mean of its divisors is an integer number (74306100).

Almost surely, 2^8995691520 is an apocalyptic number.

8995691520 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 8995691520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16347342000).

8995691520 is an abundant number, since it is smaller than the sum of its proper divisors (23698992480).

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

8995691520 is a wasteful number, since it uses less digits than its factorization.

8995691520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The square root of 8995691520 is about 94845.6194033230. The cubic root of 8995691520 is about 2079.7518441620.

It can be divided in two parts, 89956 and 91520, that added together give a square (181476 = 426²).

The spelling of 8995691520 in words is "eight billion, nine hundred ninety-five million, six hundred ninety-one thousand, five hundred twenty".