654558855456 has 192 divisors, whose sum is σ = 1958036613120. Its totient is φ = 189521418240.

The previous prime is 654558855383. The next prime is 654558855481.

654558855456 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23132325 + ... + 23160603.

It is an arithmetic number, because the mean of its divisors is an integer number (10198107360).

Almost surely, 2^654558855456 is an apocalyptic number.

654558855456 is a gapful number since it is divisible by the number (66) 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 654558855456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979018306560).

654558855456 is an abundant number, since it is smaller than the sum of its proper divisors (1303477757664).

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

654558855456 is a wasteful number, since it uses less digits than its factorization.

654558855456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29279 (or 29271 counting only the distinct ones).

The product of its digits is 576000000, while the sum is 66.

The spelling of 654558855456 in words is "six hundred fifty-four billion, five hundred fifty-eight million, eight hundred fifty-five thousand, four hundred fifty-six".