616211612133 has 24 divisors (see below), whose sum is σ = 898316033472. Its totient is φ = 375525491328.

The previous prime is 616211612087. The next prime is 616211612179. The reversal of 616211612133 is 331216112616.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (616211612087) and next prime (616211612179).

It is not a de Polignac number, because 616211612133 - 2⁶ = 616211612069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616211612094 and 616211612103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616211692133) 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 23 ways as a sum of consecutive naturals, for example, 5847816 + ... + 5952257.

It is an arithmetic number, because the mean of its divisors is an integer number (37429834728).

Almost surely, 2^616211612133 is an apocalyptic number.

It is an amenable number.

616211612133 is a deficient number, since it is larger than the sum of its proper divisors (282104421339).

616211612133 is a wasteful number, since it uses less digits than its factorization.

616211612133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11800205 (or 11800192 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

Adding to 616211612133 its reverse (331216112616), we get a palindrome (947427724749).

The spelling of 616211612133 in words is "six hundred sixteen billion, two hundred eleven million, six hundred twelve thousand, one hundred thirty-three".