9156841020 has 120 divisors (see below), whose sum is σ = 29089368000. Its totient is φ = 2410881408.

The previous prime is 9156840947. The next prime is 9156841021. The reversal of 9156841020 is 201486519.

9156841020 is a `hidden beast` number, since 91 + 568 + 4 + 1 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9156841021) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 92206 + ... + 163754.

It is an arithmetic number, because the mean of its divisors is an integer number (242411400).

Almost surely, 2^9156841020 is an apocalyptic number.

9156841020 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 9156841020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14544684000).

9156841020 is an abundant number, since it is smaller than the sum of its proper divisors (19932526980).

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

9156841020 is a wasteful number, since it uses less digits than its factorization.

9156841020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71649 (or 71638 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 9156841020 is about 95691.3842516660. The cubic root of 9156841020 is about 2092.0973596119.

The spelling of 9156841020 in words is "nine billion, one hundred fifty-six million, eight hundred forty-one thousand, twenty".