163234353625454 has 4 divisors (see below), whose sum is σ = 244851530438184. Its totient is φ = 81617176812726.

The previous prime is 163234353625403. The next prime is 163234353625487. The reversal of 163234353625454 is 454526353432361.

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

It is a super-2 number, since 2×163234353625454² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163234353625454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40808588406362 + ... + 40808588406365.

It is an arithmetic number, because the mean of its divisors is an integer number (61212882609546).

Almost surely, 2^{163234353625454} is an apocalyptic number.

163234353625454 is a deficient number, since it is larger than the sum of its proper divisors (81617176812730).

163234353625454 is an equidigital number, since it uses as much as digits as its factorization.

163234353625454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81617176812729.

The product of its digits is 93312000, while the sum is 56.

The spelling of 163234353625454 in words is "one hundred sixty-three trillion, two hundred thirty-four billion, three hundred fifty-three million, six hundred twenty-five thousand, four hundred fifty-four".