616573866537 has 8 divisors (see below), whose sum is σ = 913442765280. Its totient is φ = 411049244340.

The previous prime is 616573866443. The next prime is 616573866563. The reversal of 616573866537 is 735668375616.

616573866537 is a `hidden beast` number, since 6 + 1 + 6 + 5 + 7 + 38 + 66 + 537 = 666.

It is not a de Polignac number, because 616573866537 - 2¹² = 616573862441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616573866137) by changing a digit.

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, 11418034539 + ... + 11418034592.

It is an arithmetic number, because the mean of its divisors is an integer number (114180345660).

Almost surely, 2^616573866537 is an apocalyptic number.

It is an amenable number.

616573866537 is a deficient number, since it is larger than the sum of its proper divisors (296868898743).

616573866537 is a wasteful number, since it uses less digits than its factorization.

616573866537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22836069140 (or 22836069134 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 63.

The spelling of 616573866537 in words is "six hundred sixteen billion, five hundred seventy-three million, eight hundred sixty-six thousand, five hundred thirty-seven".