616612020425 has 12 divisors (see below), whose sum is σ = 764611335180. Its totient is φ = 493281597120.

The previous prime is 616612020403. The next prime is 616612020443. The reversal of 616612020425 is 524020216616.

It can be written as a sum of positive squares in 6 ways, for example, as 123232201 + 616488788224 = 11101^2 + 785168^2 .

It is not a de Polignac number, because 616612020425 - 2⁸ = 616612020169 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 1734179 + ... + 2059271.

It is an arithmetic number, because the mean of its divisors is an integer number (63717611265).

Almost surely, 2^616612020425 is an apocalyptic number.

It is an amenable number.

616612020425 is a deficient number, since it is larger than the sum of its proper divisors (147999314755).

616612020425 is a wasteful number, since it uses less digits than its factorization.

616612020425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400972 (or 400967 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 616612020425 in words is "six hundred sixteen billion, six hundred twelve million, twenty thousand, four hundred twenty-five".