163721650055 has 8 divisors (see below), whose sum is σ = 196619596800. Its totient is φ = 130874908896.

The previous prime is 163721650033. The next prime is 163721650067. The reversal of 163721650055 is 550056127361.

163721650055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163721650055 - 2¹⁴ = 163721633671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163721649994 and 163721650021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12794360 + ... + 12807149.

It is an arithmetic number, because the mean of its divisors is an integer number (24577449600).

Almost surely, 2^163721650055 is an apocalyptic number.

163721650055 is a deficient number, since it is larger than the sum of its proper divisors (32897946745).

163721650055 is a wasteful number, since it uses less digits than its factorization.

163721650055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25602793.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 163721650055 in words is "one hundred sixty-three billion, seven hundred twenty-one million, six hundred fifty thousand, fifty-five".