165059576819 has 2 divisors, whose sum is σ = 165059576820. Its totient is φ = 165059576818.

The previous prime is 165059576813. The next prime is 165059576827. The reversal of 165059576819 is 918675950561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165059576819 - 2²⁸ = 164791141363 is a prime.

It is a super-2 number, since 2×165059576819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165059576813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82529788409 + 82529788410.

It is an arithmetic number, because the mean of its divisors is an integer number (82529788410).

Almost surely, 2^165059576819 is an apocalyptic number.

165059576819 is a deficient number, since it is larger than the sum of its proper divisors (1).

165059576819 is an equidigital number, since it uses as much as digits as its factorization.

165059576819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412000, while the sum is 62.

The spelling of 165059576819 in words is "one hundred sixty-five billion, fifty-nine million, five hundred seventy-six thousand, eight hundred nineteen".