168236480494 has 4 divisors (see below), whose sum is σ = 252354720744. Its totient is φ = 84118240246.

The previous prime is 168236480479. The next prime is 168236480497. The reversal of 168236480494 is 494084632861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168236480497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42059120122 + ... + 42059120125.

It is an arithmetic number, because the mean of its divisors is an integer number (63088680186).

Almost surely, 2^168236480494 is an apocalyptic number.

168236480494 is a deficient number, since it is larger than the sum of its proper divisors (84118240250).

168236480494 is an equidigital number, since it uses as much as digits as its factorization.

168236480494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84118240249.

The product of its (nonzero) digits is 7962624, while the sum is 55.

The spelling of 168236480494 in words is "one hundred sixty-eight billion, two hundred thirty-six million, four hundred eighty thousand, four hundred ninety-four".