163736063121 has 4 divisors (see below), whose sum is σ = 218314750832. Its totient is φ = 109157375412.

The previous prime is 163736063087. The next prime is 163736063131. The reversal of 163736063121 is 121360637361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 163736063121 - 2⁷ = 163736062993 is a prime.

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 163736063121.

It is not an unprimeable number, because it can be changed into a prime (163736063131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27289343851 + ... + 27289343856.

It is an arithmetic number, because the mean of its divisors is an integer number (54578687708).

Almost surely, 2^163736063121 is an apocalyptic number.

It is an amenable number.

163736063121 is a deficient number, since it is larger than the sum of its proper divisors (54578687711).

163736063121 is an equidigital number, since it uses as much as digits as its factorization.

163736063121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54578687710.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 163736063121 in words is "one hundred sixty-three billion, seven hundred thirty-six million, sixty-three thousand, one hundred twenty-one".