1551515616151 has 2 divisors, whose sum is σ = 1551515616152. Its totient is φ = 1551515616150.

The previous prime is 1551515616149. The next prime is 1551515616227. The reversal of 1551515616151 is 1516165151551.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1516165151551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1551515616151 - 2¹ = 1551515616149 is a prime.

Together with 1551515616149, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1551515616098 and 1551515616107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1551515616251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775757808075 + 775757808076.

It is an arithmetic number, because the mean of its divisors is an integer number (775757808076).

Almost surely, 2^{1551515616151} is an apocalyptic number.

1551515616151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551515616151 is an equidigital number, since it uses as much as digits as its factorization.

1551515616151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112500, while the sum is 43.

The spelling of 1551515616151 in words is "one trillion, five hundred fifty-one billion, five hundred fifteen million, six hundred sixteen thousand, one hundred fifty-one".