161584769005 has 32 divisors (see below), whose sum is σ = 213568358400. Its totient is φ = 116388710400.

The previous prime is 161584768981. The next prime is 161584769011. The reversal of 161584769005 is 500967485161.

It is not a de Polignac number, because 161584769005 - 2¹⁷ = 161584637933 is a prime.

It is a super-2 number, since 2×161584769005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2372061 + ... + 2439229.

It is an arithmetic number, because the mean of its divisors is an integer number (6674011200).

Almost surely, 2^161584769005 is an apocalyptic number.

It is an amenable number.

161584769005 is a deficient number, since it is larger than the sum of its proper divisors (51983589395).

161584769005 is a wasteful number, since it uses less digits than its factorization.

161584769005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67605.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 161584769005 in words is "one hundred sixty-one billion, five hundred eighty-four million, seven hundred sixty-nine thousand, five".