161675585339 has 4 divisors (see below), whose sum is σ = 161676703824. Its totient is φ = 161674466856.

The previous prime is 161675585293. The next prime is 161675585347. The reversal of 161675585339 is 933585576161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 161675585339 - 2³⁶ = 92956108603 is a prime.

It is a super-2 number, since 2×161675585339² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161675585039) 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, 303407 + ... + 644520.

It is an arithmetic number, because the mean of its divisors is an integer number (40419175956).

Almost surely, 2^161675585339 is an apocalyptic number.

161675585339 is a deficient number, since it is larger than the sum of its proper divisors (1118485).

161675585339 is an equidigital number, since it uses as much as digits as its factorization.

161675585339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118484.

The product of its digits is 20412000, while the sum is 59.

The spelling of 161675585339 in words is "one hundred sixty-one billion, six hundred seventy-five million, five hundred eighty-five thousand, three hundred thirty-nine".