8981601650 has 24 divisors (see below), whose sum is σ = 19092319680. Its totient is φ = 3079406160.

The previous prime is 8981601623. The next prime is 8981601677. The reversal of 8981601650 is 561061898.

8981601650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8981601623) and next prime (8981601677).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12830510 + ... + 12831209.

It is an arithmetic number, because the mean of its divisors is an integer number (795513320).

Almost surely, 2^8981601650 is an apocalyptic number.

8981601650 is an abundant number, since it is smaller than the sum of its proper divisors (10110718030).

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

8981601650 is a wasteful number, since it uses less digits than its factorization.

8981601650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25661738 (or 25661733 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 8981601650 is about 94771.3123787995. The cubic root of 8981601650 is about 2078.6654446113.

The spelling of 8981601650 in words is "eight billion, nine hundred eighty-one million, six hundred one thousand, six hundred fifty".