9555043680 has 864 divisors, whose sum is σ = 41437992960. Its totient is φ = 1962455040.

The previous prime is 9555043591. The next prime is 9555043691. The reversal of 9555043680 is 863405559.

9555043680 is a `hidden beast` number, since 95 + 5 + 50 + 436 + 80 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 120949881 + ... + 120949959.

It is an arithmetic number, because the mean of its divisors is an integer number (47960640).

Almost surely, 2^9555043680 is an apocalyptic number.

9555043680 is a gapful number since it is divisible by the number (90) 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 9555043680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20718996480).

9555043680 is an abundant number, since it is smaller than the sum of its proper divisors (31882949280).

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

9555043680 is a wasteful number, since it uses less digits than its factorization.

9555043680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 9555043680 is about 97749.9037339679. The cubic root of 9555043680 is about 2121.9943615246.

The spelling of 9555043680 in words is "nine billion, five hundred fifty-five million, forty-three thousand, six hundred eighty".