161132235704425 has 12 divisors (see below), whose sum is σ = 200241180104476. Its totient is φ = 128623718995200.

The previous prime is 161132235704413. The next prime is 161132235704443. The reversal of 161132235704425 is 524407532231161.

It can be written as a sum of positive squares in 6 ways, for example, as 15426960832089 + 145705274872336 = 3927717^2 + 12070844^2 .

It is not a de Polignac number, because 161132235704425 - 2²⁹ = 161131698833513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7051727556 + ... + 7051750405.

Almost surely, 2^{161132235704425} is an apocalyptic number.

It is an amenable number.

161132235704425 is a deficient number, since it is larger than the sum of its proper divisors (39108944400051).

161132235704425 is a wasteful number, since it uses less digits than its factorization.

161132235704425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14103478428 (or 14103478423 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

Adding to 161132235704425 its reverse (524407532231161), we get a palindrome (685539767935586).

The spelling of 161132235704425 in words is "one hundred sixty-one trillion, one hundred thirty-two billion, two hundred thirty-five million, seven hundred four thousand, four hundred twenty-five".