15050051616121 has 2 divisors, whose sum is σ = 15050051616122. Its totient is φ = 15050051616120.

The previous prime is 15050051616097. The next prime is 15050051616133. The reversal of 15050051616121 is 12161615005051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13343276594025 + 1706775022096 = 3652845^2 + 1306436^2 .

It is an emirp because it is prime and its reverse (12161615005051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15050051616121 - 2²¹ = 15050049518969 is a prime.

It is not a weakly prime, because it can be changed into another prime (15050051616191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7525025808060 + 7525025808061.

It is an arithmetic number, because the mean of its divisors is an integer number (7525025808061).

Almost surely, 2^{15050051616121} is an apocalyptic number.

It is an amenable number.

15050051616121 is a deficient number, since it is larger than the sum of its proper divisors (1).

15050051616121 is an equidigital number, since it uses as much as digits as its factorization.

15050051616121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 34.

The spelling of 15050051616121 in words is "fifteen trillion, fifty billion, fifty-one million, six hundred sixteen thousand, one hundred twenty-one".