616665444150266 has 16 divisors (see below), whose sum is σ = 1093593891104640. Its totient is φ = 255171907924080.

The previous prime is 616665444150257. The next prime is 616665444150269. The reversal of 616665444150266 is 662051444566616.

It is a happy number.

It is a super-3 number, since 3×616665444150266³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 616665444150199 and 616665444150208.

It is not an unprimeable number, because it can be changed into a prime (616665444150269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759440201750 + ... + 759440202561.

It is an arithmetic number, because the mean of its divisors is an integer number (68349618194040).

Almost surely, 2^{616665444150266} is an apocalyptic number.

616665444150266 is a deficient number, since it is larger than the sum of its proper divisors (476928446954374).

616665444150266 is a wasteful number, since it uses less digits than its factorization.

616665444150266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518880404349.

The product of its (nonzero) digits is 149299200, while the sum is 62.

The spelling of 616665444150266 in words is "six hundred sixteen trillion, six hundred sixty-five billion, four hundred forty-four million, one hundred fifty thousand, two hundred sixty-six".