654452998660 has 96 divisors (see below), whose sum is σ = 1423311087744. Its totient is φ = 252600960000.

The previous prime is 654452998613. The next prime is 654452998687. The reversal of 654452998660 is 66899254456.

It is a junction number, because it is equal to n+sod(n) for n = 654452998592 and 654452998601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90352999 + ... + 90360241.

It is an arithmetic number, because the mean of its divisors is an integer number (14826157164).

Almost surely, 2^654452998660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654452998660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711655543872).

654452998660 is an abundant number, since it is smaller than the sum of its proper divisors (768858089084).

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

654452998660 is a wasteful number, since it uses less digits than its factorization.

654452998660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485 (or 8483 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 64.

The spelling of 654452998660 in words is "six hundred fifty-four billion, four hundred fifty-two million, nine hundred ninety-eight thousand, six hundred sixty".