163936247541 has 48 divisors (see below), whose sum is σ = 249060958272. Its totient is φ = 95765725440.

The previous prime is 163936247483. The next prime is 163936247557. The reversal of 163936247541 is 145742639361.

It is not a de Polignac number, because 163936247541 - 2¹⁴ = 163936231157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163936247141) 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, 1380081 + ... + 1494153.

It is an arithmetic number, because the mean of its divisors is an integer number (5188769964).

Almost surely, 2^163936247541 is an apocalyptic number.

163936247541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163936247541 is a deficient number, since it is larger than the sum of its proper divisors (85124710731).

163936247541 is a wasteful number, since it uses less digits than its factorization.

163936247541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114242 (or 114231 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The spelling of 163936247541 in words is "one hundred sixty-three billion, nine hundred thirty-six million, two hundred forty-seven thousand, five hundred forty-one".