163044440361 has 48 divisors (see below), whose sum is σ = 273857500800. Its totient is φ = 92377858560.

The previous prime is 163044440311. The next prime is 163044440371.

163044440361 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 163044440361 - 2¹⁵ = 163044407593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163044440311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74325 + ... + 575858.

It is an arithmetic number, because the mean of its divisors is an integer number (5705364600).

Almost surely, 2^163044440361 is an apocalyptic number.

163044440361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163044440361 is a deficient number, since it is larger than the sum of its proper divisors (110813060439).

163044440361 is a wasteful number, since it uses less digits than its factorization.

163044440361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650366 (or 650363 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 163044440361 in words is "one hundred sixty-three billion, forty-four million, four hundred forty thousand, three hundred sixty-one".