654220340892 has 60 divisors (see below), whose sum is σ = 1718942896440. Its totient is φ = 216966453984.

The previous prime is 654220340869. The next prime is 654220340951. The reversal of 654220340892 is 298043022456.

654220340892 is a `hidden beast` number, since 6 + 5 + 4 + 220 + 340 + 89 + 2 = 666.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 5061042 + ... + 5188697.

It is an arithmetic number, because the mean of its divisors is an integer number (28649048274).

Almost surely, 2^654220340892 is an apocalyptic number.

It is an amenable number.

654220340892 is an abundant number, since it is smaller than the sum of its proper divisors (1064722555548).

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

654220340892 is a wasteful number, since it uses less digits than its factorization.

654220340892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10249952 (or 10249941 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 654220340892 in words is "six hundred fifty-four billion, two hundred twenty million, three hundred forty thousand, eight hundred ninety-two".