616355542225 has 24 divisors (see below), whose sum is σ = 781904454912. Its totient is φ = 481837305600.

The previous prime is 616355542213. The next prime is 616355542241. The reversal of 616355542225 is 522245553616.

It is not a de Polignac number, because 616355542225 - 2¹⁵ = 616355509457 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1335897 + ... + 1737046.

It is an arithmetic number, because the mean of its divisors is an integer number (32579352288).

Almost surely, 2^616355542225 is an apocalyptic number.

It is an amenable number.

616355542225 is a deficient number, since it is larger than the sum of its proper divisors (165548912687).

616355542225 is a wasteful number, since it uses less digits than its factorization.

616355542225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073137 (or 3073132 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 616355542225 in words is "six hundred sixteen billion, three hundred fifty-five million, five hundred forty-two thousand, two hundred twenty-five".