654298681920 has 672 divisors, whose sum is σ = 2441267851008. Its totient is φ = 147457179648.

The previous prime is 654298681901. The next prime is 654298681943. The reversal of 654298681920 is 29186892456.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 95 ways as a sum of consecutive naturals, for example, 133446189 + ... + 133451091.

It is an arithmetic number, because the mean of its divisors is an integer number (3632839064).

Almost surely, 2^654298681920 is an apocalyptic number.

654298681920 is a gapful number since it is divisible by the number (60) 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 654298681920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220633925504).

654298681920 is an abundant number, since it is smaller than the sum of its proper divisors (1786969169088).

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

654298681920 is a wasteful number, since it uses less digits than its factorization.

654298681920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 654298681920 in words is "six hundred fifty-four billion, two hundred ninety-eight million, six hundred eighty-one thousand, nine hundred twenty".