616134437361 has 24 divisors (see below), whose sum is σ = 918726891264. Its totient is φ = 397486118880.

The previous prime is 616134437357. The next prime is 616134437371. The reversal of 616134437361 is 163734431616.

It is a happy number.

It is not a de Polignac number, because 616134437361 - 2² = 616134437357 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (616134437341) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7210690 + ... + 7295636.

It is an arithmetic number, because the mean of its divisors is an integer number (38280287136).

Almost surely, 2^616134437361 is an apocalyptic number.

It is an amenable number.

616134437361 is a deficient number, since it is larger than the sum of its proper divisors (302592453903).

616134437361 is a wasteful number, since it uses less digits than its factorization.

616134437361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110981 (or 110978 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

Adding to 616134437361 its reverse (163734431616), we get a palindrome (779868868977).

The spelling of 616134437361 in words is "six hundred sixteen billion, one hundred thirty-four million, four hundred thirty-seven thousand, three hundred sixty-one".