163540031565093 has 8 divisors (see below), whose sum is σ = 218220722605248. Its totient is φ = 108943014117504.

The previous prime is 163540031565089. The next prime is 163540031565133. The reversal of 163540031565093 is 390565130045361.

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

It is not a de Polignac number, because 163540031565093 - 2² = 163540031565089 is a prime.

It is a super-2 number, since 2×163540031565093² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163540731565093) 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, 20918393580 + ... + 20918401397.

It is an arithmetic number, because the mean of its divisors is an integer number (27277590325656).

Almost surely, 2^{163540031565093} is an apocalyptic number.

It is an amenable number.

163540031565093 is a deficient number, since it is larger than the sum of its proper divisors (54680691040155).

163540031565093 is a wasteful number, since it uses less digits than its factorization.

163540031565093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41836796283.

The product of its (nonzero) digits is 4374000, while the sum is 51.

The spelling of 163540031565093 in words is "one hundred sixty-three trillion, five hundred forty billion, thirty-one million, five hundred sixty-five thousand, ninety-three".