9155445520 has 80 divisors (see below), whose sum is σ = 22961155392. Its totient is φ = 3374968320.

The previous prime is 9155445503. The next prime is 9155445529. The reversal of 9155445520 is 255445519.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (9155445529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661875 + ... + 675565.

Almost surely, 2^9155445520 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 9155445520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11480577696).

9155445520 is an abundant number, since it is smaller than the sum of its proper divisors (13805709872).

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

9155445520 is a wasteful number, since it uses less digits than its factorization.

9155445520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14360 (or 14354 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The square root of 9155445520 is about 95684.0923037889. The cubic root of 9155445520 is about 2091.9910758625.

The spelling of 9155445520 in words is "nine billion, one hundred fifty-five million, four hundred forty-five thousand, five hundred twenty".