163442221054655 has 8 divisors (see below), whose sum is σ = 196130952819600. Its totient is φ = 130753585141056.

The previous prime is 163442221054591. The next prime is 163442221054667. The reversal of 163442221054655 is 556450122244361.

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 163442221054655 - 2⁶ = 163442221054591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20156510 + ... + 27077099.

It is an arithmetic number, because the mean of its divisors is an integer number (24516369102450).

Almost surely, 2^{163442221054655} is an apocalyptic number.

163442221054655 is a deficient number, since it is larger than the sum of its proper divisors (32688731764945).

163442221054655 is an equidigital number, since it uses as much as digits as its factorization.

163442221054655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47925673.

The product of its (nonzero) digits is 6912000, while the sum is 50.

The spelling of 163442221054655 in words is "one hundred sixty-three trillion, four hundred forty-two billion, two hundred twenty-one million, fifty-four thousand, six hundred fifty-five".