102161316412 has 6 divisors (see below), whose sum is σ = 178782303728. Its totient is φ = 51080658204.

The previous prime is 102161316407. The next prime is 102161316421. The reversal of 102161316412 is 214613161201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12770164548 + ... + 12770164555.

Almost surely, 2^102161316412 is an apocalyptic number.

It is an amenable number.

102161316412 is a deficient number, since it is larger than the sum of its proper divisors (76620987316).

102161316412 is a wasteful number, since it uses less digits than its factorization.

102161316412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25540329107 (or 25540329105 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 102161316412 its reverse (214613161201), we get a palindrome (316774477613).

The spelling of 102161316412 in words is "one hundred two billion, one hundred sixty-one million, three hundred sixteen thousand, four hundred twelve".