616612251165 has 8 divisors (see below), whose sum is σ = 986579601888. Its totient is φ = 328859867280.

The previous prime is 616612251131. The next prime is 616612251251. The reversal of 616612251165 is 561152216616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616612251165 - 2²⁰ = 616611202589 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 20553741691 + ... + 20553741720.

It is an arithmetic number, because the mean of its divisors is an integer number (123322450236).

Almost surely, 2^616612251165 is an apocalyptic number.

It is an amenable number.

616612251165 is a deficient number, since it is larger than the sum of its proper divisors (369967350723).

616612251165 is a wasteful number, since it uses less digits than its factorization.

616612251165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41107483419.

The product of its digits is 129600, while the sum is 42.

The spelling of 616612251165 in words is "six hundred sixteen billion, six hundred twelve million, two hundred fifty-one thousand, one hundred sixty-five".