1613165912087 has 2 divisors, whose sum is σ = 1613165912088. Its totient is φ = 1613165912086.

The previous prime is 1613165912063. The next prime is 1613165912089. The reversal of 1613165912087 is 7802195613161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1613165912087 is a prime.

It is a super-2 number, since 2×1613165912087² (a number of 25 digits) contains 22 as substring.

Together with 1613165912089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1613165912089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806582956043 + 806582956044.

It is an arithmetic number, because the mean of its divisors is an integer number (806582956044).

Almost surely, 2^{1613165912087} is an apocalyptic number.

1613165912087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613165912087 is an equidigital number, since it uses as much as digits as its factorization.

1613165912087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 50.

It can be divided in two parts, 1613165 and 912087, that added together give a palindrome (2525252).

The spelling of 1613165912087 in words is "one trillion, six hundred thirteen billion, one hundred sixty-five million, nine hundred twelve thousand, eighty-seven".