163621241222453 has 32 divisors (see below), whose sum is σ = 195688803581952. Its totient is φ = 133852005705600.

The previous prime is 163621241222423. The next prime is 163621241222501. The reversal of 163621241222453 is 354222142126361.

163621241222453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163621241222453 - 2³⁰ = 163620167480629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163621241222423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186978350 + ... + 187851392.

It is an arithmetic number, because the mean of its divisors is an integer number (6115275111936).

Almost surely, 2^{163621241222453} is an apocalyptic number.

It is an amenable number.

163621241222453 is a deficient number, since it is larger than the sum of its proper divisors (32067562359499).

163621241222453 is a wasteful number, since it uses less digits than its factorization.

163621241222453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884985.

The product of its digits is 829440, while the sum is 44.

The spelling of 163621241222453 in words is "one hundred sixty-three trillion, six hundred twenty-one billion, two hundred forty-one million, two hundred twenty-two thousand, four hundred fifty-three".