163035435661421 has 4 divisors (see below), whose sum is σ = 163035622740000. Its totient is φ = 163035248582844.

The previous prime is 163035435661391. The next prime is 163035435661459. The reversal of 163035435661421 is 124166534530361.

163035435661421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 163035435661421 - 2¹⁰ = 163035435660397 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 163035435661421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163035435661621) 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, 92225921 + ... + 93977078.

It is an arithmetic number, because the mean of its divisors is an integer number (40758905685000).

Almost surely, 2^{163035435661421} is an apocalyptic number.

It is an amenable number.

163035435661421 is a deficient number, since it is larger than the sum of its proper divisors (187078579).

163035435661421 is an equidigital number, since it uses as much as digits as its factorization.

163035435661421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187078578.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 163035435661421 in words is "one hundred sixty-three trillion, thirty-five billion, four hundred thirty-five million, six hundred sixty-one thousand, four hundred twenty-one".