8558542321920 has 360 divisors, whose sum is σ = 30646019726784. Its totient is φ = 2280639172608.

The previous prime is 8558542321877. The next prime is 8558542321969. The reversal of 8558542321920 is 291232458558.

8558542321920 is a `hidden beast` number, since 8 + 5 + 5 + 8 + 542 + 3 + 2 + 1 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 147922437 + ... + 147980283.

Almost surely, 2^{8558542321920} is an apocalyptic number.

8558542321920 is a gapful number since it is divisible by the number (80) 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 8558542321920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15323009863392).

8558542321920 is an abundant number, since it is smaller than the sum of its proper divisors (22087477404864).

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

8558542321920 is a wasteful number, since it uses less digits than its factorization.

8558542321920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59307 (or 59284 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 8558542321920 in words is "eight trillion, five hundred fifty-eight billion, five hundred forty-two million, three hundred twenty-one thousand, nine hundred twenty".