2145162697771 has 2 divisors, whose sum is σ = 2145162697772. Its totient is φ = 2145162697770.

The previous prime is 2145162697709. The next prime is 2145162697789. The reversal of 2145162697771 is 1777962615412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145162697771 - 2¹⁷ = 2145162566699 is a prime.

It is a super-3 number, since 3×2145162697771³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2145162677771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072581348885 + 1072581348886.

It is an arithmetic number, because the mean of its divisors is an integer number (1072581348886).

Almost surely, 2^{2145162697771} is an apocalyptic number.

2145162697771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145162697771 is an equidigital number, since it uses as much as digits as its factorization.

2145162697771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 58.

The spelling of 2145162697771 in words is "two trillion, one hundred forty-five billion, one hundred sixty-two million, six hundred ninety-seven thousand, seven hundred seventy-one".