163440202240031 has 8 divisors (see below), whose sum is σ = 163745136569520. Its totient is φ = 163135290322368.

The previous prime is 163440202240009. The next prime is 163440202240043. The reversal of 163440202240031 is 130042202044361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163440202240031 - 2¹⁴ = 163440202223647 is a prime.

It is a super-2 number, since 2×163440202240031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163440202240031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163440202240331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9031445 + ... + 20210081.

It is an arithmetic number, because the mean of its divisors is an integer number (20468142071190).

Almost surely, 2^{163440202240031} is an apocalyptic number.

163440202240031 is a deficient number, since it is larger than the sum of its proper divisors (304934329489).

163440202240031 is a wasteful number, since it uses less digits than its factorization.

163440202240031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11205913.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 163440202240031 its reverse (130042202044361), we get a palindrome (293482404284392).

The spelling of 163440202240031 in words is "one hundred sixty-three trillion, four hundred forty billion, two hundred two million, two hundred forty thousand, thirty-one".