616550139166 has 32 divisors (see below), whose sum is σ = 998150989248. Its totient is φ = 283937875200.

The previous prime is 616550139151. The next prime is 616550139173. The reversal of 616550139166 is 661931055616.

It is a super-2 number, since 2×616550139166² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23883466 + ... + 23909266.

It is an arithmetic number, because the mean of its divisors is an integer number (31192218414).

Almost surely, 2^616550139166 is an apocalyptic number.

616550139166 is a deficient number, since it is larger than the sum of its proper divisors (381600850082).

616550139166 is a wasteful number, since it uses less digits than its factorization.

616550139166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27796.

The product of its (nonzero) digits is 874800, while the sum is 49.

The spelling of 616550139166 in words is "six hundred sixteen billion, five hundred fifty million, one hundred thirty-nine thousand, one hundred sixty-six".