165120412205416 has 16 divisors (see below), whose sum is σ = 327812583055140. Its totient is φ = 77703723390720.

The previous prime is 165120412205389. The next prime is 165120412205461. The reversal of 165120412205416 is 614502214021561.

It can be written as a sum of positive squares in 2 ways, for example, as 141901795360516 + 23218616844900 = 11912254^2 + 4818570^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607060338855 + ... + 607060339126.

Almost surely, 2^{165120412205416} is an apocalyptic number.

It is an amenable number.

165120412205416 is a deficient number, since it is larger than the sum of its proper divisors (162692170849724).

165120412205416 is a wasteful number, since it uses less digits than its factorization.

165120412205416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214120678004 (or 1214120678000 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

Adding to 165120412205416 its reverse (614502214021561), we get a palindrome (779622626226977).

The spelling of 165120412205416 in words is "one hundred sixty-five trillion, one hundred twenty billion, four hundred twelve million, two hundred five thousand, four hundred sixteen".