161223602839 has 8 divisors (see below), whose sum is σ = 182763598640. Its totient is φ = 140989061376.

The previous prime is 161223602807. The next prime is 161223602851. The reversal of 161223602839 is 938206322161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161223602839 - 2⁵ = 161223602807 is a prime.

It is a super-2 number, since 2×161223602839² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161223602795 and 161223602804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161223608839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326363322 + ... + 326363815.

It is an arithmetic number, because the mean of its divisors is an integer number (22845449830).

Almost surely, 2^161223602839 is an apocalyptic number.

161223602839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

161223602839 is a deficient number, since it is larger than the sum of its proper divisors (21539995801).

161223602839 is a wasteful number, since it uses less digits than its factorization.

161223602839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652727169.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 161223602839 in words is "one hundred sixty-one billion, two hundred twenty-three million, six hundred two thousand, eight hundred thirty-nine".