161293457059 has 4 divisors (see below), whose sum is σ = 184335379504. Its totient is φ = 138251534616.

The previous prime is 161293457053. The next prime is 161293457081. The reversal of 161293457059 is 950754392161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161293457059 - 2¹³ = 161293448867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161293456997 and 161293457015.

It is not an unprimeable number, because it can be changed into a prime (161293457053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11520961212 + ... + 11520961225.

It is an arithmetic number, because the mean of its divisors is an integer number (46083844876).

Almost surely, 2^161293457059 is an apocalyptic number.

161293457059 is a deficient number, since it is larger than the sum of its proper divisors (23041922445).

161293457059 is an equidigital number, since it uses as much as digits as its factorization.

161293457059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23041922444.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 161293457059 in words is "one hundred sixty-one billion, two hundred ninety-three million, four hundred fifty-seven thousand, fifty-nine".