9155222041680 has 1920 divisors, whose sum is σ = 40807108177920. Its totient is φ = 1865642803200.

The previous prime is 9155222041661. The next prime is 9155222041699. The reversal of 9155222041680 is 861402225519.

9155222041680 is a `hidden beast` number, since 9 + 1 + 5 + 5 + 2 + 220 + 416 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (9155222041661) and next prime (9155222041699).

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 383 ways as a sum of consecutive naturals, for example, 1790574804 + ... + 1790579916.

It is an arithmetic number, because the mean of its divisors is an integer number (21253702176).

Almost surely, 2^{9155222041680} is an apocalyptic number.

9155222041680 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 9155222041680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20403554088960).

9155222041680 is an abundant number, since it is smaller than the sum of its proper divisors (31651886136240).

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

9155222041680 is a wasteful number, since it uses less digits than its factorization.

9155222041680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218 (or 5195 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 9155222041680 in words is "nine trillion, one hundred fifty-five billion, two hundred twenty-two million, forty-one thousand, six hundred eighty".