123361616536 has 8 divisors (see below), whose sum is σ = 231303031020. Its totient is φ = 61680808264.

The previous prime is 123361616501. The next prime is 123361616549. The reversal of 123361616536 is 635616163321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 123361616492 and 123361616501.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7710101026 + ... + 7710101041.

Almost surely, 2^123361616536 is an apocalyptic number.

It is an amenable number.

123361616536 is a deficient number, since it is larger than the sum of its proper divisors (107941414484).

123361616536 is a wasteful number, since it uses less digits than its factorization.

123361616536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15420202073 (or 15420202069 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

Adding to 123361616536 its reverse (635616163321), we get a palindrome (758977779857).

The spelling of 123361616536 in words is "one hundred twenty-three billion, three hundred sixty-one million, six hundred sixteen thousand, five hundred thirty-six".