616722783945 has 8 divisors (see below), whose sum is σ = 986756454336. Its totient is φ = 328918818096.

The previous prime is 616722783869. The next prime is 616722783977. The reversal of 616722783945 is 549387227616.

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

It is not a de Polignac number, because 616722783945 - 2²⁴ = 616706006729 is a prime.

It is a super-2 number, since 2×616722783945² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20557426117 + ... + 20557426146.

It is an arithmetic number, because the mean of its divisors is an integer number (123344556792).

Almost surely, 2^616722783945 is an apocalyptic number.

It is an amenable number.

616722783945 is a deficient number, since it is larger than the sum of its proper divisors (370033670391).

616722783945 is a wasteful number, since it uses less digits than its factorization.

616722783945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41114852271.

The product of its digits is 30481920, while the sum is 60.

The spelling of 616722783945 in words is "six hundred sixteen billion, seven hundred twenty-two million, seven hundred eighty-three thousand, nine hundred forty-five".