654916799625 has 128 divisors (see below), whose sum is σ = 1299395395584. Its totient is φ = 289215360000.

The previous prime is 654916799611. The next prime is 654916799681. The reversal of 654916799625 is 526997619456.

It is not a de Polignac number, because 654916799625 - 2⁶ = 654916799561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654916799625.

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 127 ways as a sum of consecutive naturals, for example, 2023242 + ... + 2324508.

It is an arithmetic number, because the mean of its divisors is an integer number (10151526528).

Almost surely, 2^654916799625 is an apocalyptic number.

It is an amenable number.

654916799625 is a deficient number, since it is larger than the sum of its proper divisors (644478595959).

654916799625 is a wasteful number, since it uses less digits than its factorization.

654916799625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301344 (or 301334 counting only the distinct ones).

The product of its digits is 220449600, while the sum is 69.

It can be divided in two parts, 654916 and 799625, that added together give a palindrome (1454541).

The spelling of 654916799625 in words is "six hundred fifty-four billion, nine hundred sixteen million, seven hundred ninety-nine thousand, six hundred twenty-five".