161483917229 has 4 divisors (see below), whose sum is σ = 162295394400. Its totient is φ = 160672440060.

The previous prime is 161483917223. The next prime is 161483917237. The reversal of 161483917229 is 922719384161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 922719384161 = 17 ⋅54277610833.

It is a cyclic number.

It is not a de Polignac number, because 161483917229 - 2⁸ = 161483916973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161483917223) 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, 405738287 + ... + 405738684.

It is an arithmetic number, because the mean of its divisors is an integer number (40573848600).

Almost surely, 2^161483917229 is an apocalyptic number.

It is an amenable number.

161483917229 is a deficient number, since it is larger than the sum of its proper divisors (811477171).

161483917229 is an equidigital number, since it uses as much as digits as its factorization.

161483917229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811477170.

The product of its digits is 1306368, while the sum is 53.

The spelling of 161483917229 in words is "one hundred sixty-one billion, four hundred eighty-three million, nine hundred seventeen thousand, two hundred twenty-nine".