161362162019 has 2 divisors, whose sum is σ = 161362162020. Its totient is φ = 161362162018.

The previous prime is 161362162009. The next prime is 161362162033. The reversal of 161362162019 is 910261263161.

It is a weak prime.

It is an emirp because it is prime and its reverse (910261263161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161362162019 - 2²⁰ = 161361113443 is a prime.

It is a super-2 number, since 2×161362162019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161362162009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80681081009 + 80681081010.

It is an arithmetic number, because the mean of its divisors is an integer number (80681081010).

Almost surely, 2^161362162019 is an apocalyptic number.

161362162019 is a deficient number, since it is larger than the sum of its proper divisors (1).

161362162019 is an equidigital number, since it uses as much as digits as its factorization.

161362162019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 161362162019 in words is "one hundred sixty-one billion, three hundred sixty-two million, one hundred sixty-two thousand, nineteen".