654616919056 has 45 divisors (see below), whose sum is σ = 1284312361341. Its totient is φ = 323232294336.

The previous prime is 654616919039. The next prime is 654616919093. The reversal of 654616919056 is 650919616456.

The square root of 654616919056 is 809084.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 616507632400 + 38109286656 = 785180^2 + 195216^2 .

It is a super-2 number, since 2×654616919056² (a number of 24 digits) contains 22 as substring.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 268614670 + ... + 268617106.

Almost surely, 2^654616919056 is an apocalyptic number.

654616919056 is the 809084-th square number.

It is an amenable number.

654616919056 is a deficient number, since it is larger than the sum of its proper divisors (629695442285).

654616919056 is an frugal number, since it uses more digits than its factorization.

654616919056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048 (or 2522 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 654616919056 in words is "six hundred fifty-four billion, six hundred sixteen million, nine hundred nineteen thousand, fifty-six".