1615553141297 has 2 divisors, whose sum is σ = 1615553141298. Its totient is φ = 1615553141296.

The previous prime is 1615553141269. The next prime is 1615553141317. The reversal of 1615553141297 is 7921413555161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810640926736 + 804912214561 = 900356^2 + 897169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1615553141297 - 2¹⁶ = 1615553075761 is a prime.

It is a super-2 number, since 2×1615553141297² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1615553141227) by changing a digit.

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, 807776570648 + 807776570649.

It is an arithmetic number, because the mean of its divisors is an integer number (807776570649).

Almost surely, 2^{1615553141297} is an apocalyptic number.

It is an amenable number.

1615553141297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1615553141297 is an equidigital number, since it uses as much as digits as its factorization.

1615553141297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 50.

The spelling of 1615553141297 in words is "one trillion, six hundred fifteen billion, five hundred fifty-three million, one hundred forty-one thousand, two hundred ninety-seven".