161046643223 has 16 divisors (see below), whose sum is σ = 174138657120. Its totient is φ = 148417837056.

The previous prime is 161046643189. The next prime is 161046643231. The reversal of 161046643223 is 322346640161.

It is a cyclic number.

It is not a de Polignac number, because 161046643223 - 2¹⁸ = 161046381079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161046643123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4097915 + ... + 4137027.

It is an arithmetic number, because the mean of its divisors is an integer number (10883666070).

Almost surely, 2^161046643223 is an apocalyptic number.

161046643223 is a deficient number, since it is larger than the sum of its proper divisors (13092013897).

161046643223 is a wasteful number, since it uses less digits than its factorization.

161046643223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45026.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 161046643223 in words is "one hundred sixty-one billion, forty-six million, six hundred forty-three thousand, two hundred twenty-three".