616287499894816 has 24 divisors (see below), whose sum is σ = 1220019418829484. Its totient is φ = 306441298287360.

The previous prime is 616287499894813. The next prime is 616287499894831. The reversal of 616287499894816 is 618498994782616.

It can be written as a sum of positive squares in 2 ways, for example, as 446975876374416 + 169311623520400 = 21141804^2 + 13011980^2 .

It is a super-2 number, since 2×616287499894816² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (616287499894813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53201608495 + ... + 53201620078.

Almost surely, 2^{616287499894816} is an apocalyptic number.

It is an amenable number.

616287499894816 is a deficient number, since it is larger than the sum of its proper divisors (603731918934668).

616287499894816 is a wasteful number, since it uses less digits than its factorization.

616287499894816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106403228764 (or 106403228756 counting only the distinct ones).

The product of its digits is 18059231232, while the sum is 88.

The spelling of 616287499894816 in words is "six hundred sixteen trillion, two hundred eighty-seven billion, four hundred ninety-nine million, eight hundred ninety-four thousand, eight hundred sixteen".