163104425120451 has 4 divisors (see below), whose sum is σ = 217472566827272. Its totient is φ = 108736283413632.

The previous prime is 163104425120447. The next prime is 163104425120459. The reversal of 163104425120451 is 154021524401361.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 163104425120451 - 2² = 163104425120447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163104425120459) 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, 27184070853406 + ... + 27184070853411.

It is an arithmetic number, because the mean of its divisors is an integer number (54368141706818).

Almost surely, 2^{163104425120451} is an apocalyptic number.

163104425120451 is a deficient number, since it is larger than the sum of its proper divisors (54368141706821).

163104425120451 is an equidigital number, since it uses as much as digits as its factorization.

163104425120451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54368141706820.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 163104425120451 in words is "one hundred sixty-three trillion, one hundred four billion, four hundred twenty-five million, one hundred twenty thousand, four hundred fifty-one".