163645116254 has 8 divisors (see below), whose sum is σ = 251176225080. Its totient is φ = 79919707896.

The previous prime is 163645116251. The next prime is 163645116263. The reversal of 163645116254 is 452611546361.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163645116251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951425009 + ... + 951425180.

It is an arithmetic number, because the mean of its divisors is an integer number (31397028135).

Almost surely, 2^163645116254 is an apocalyptic number.

163645116254 is a deficient number, since it is larger than the sum of its proper divisors (87531108826).

163645116254 is a wasteful number, since it uses less digits than its factorization.

163645116254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902850234.

The product of its digits is 518400, while the sum is 44.

The spelling of 163645116254 in words is "one hundred sixty-three billion, six hundred forty-five million, one hundred sixteen thousand, two hundred fifty-four".