168236480549 has 4 divisors (see below), whose sum is σ = 170747472864. Its totient is φ = 165725488236.

The previous prime is 168236480543. The next prime is 168236480563. The reversal of 168236480549 is 945084632861.

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 168236480549 - 2¹⁶ = 168236415013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168236480494 and 168236480503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168236480543) 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, 1255496057 + ... + 1255496190.

It is an arithmetic number, because the mean of its divisors is an integer number (42686868216).

Almost surely, 2^168236480549 is an apocalyptic number.

It is an amenable number.

168236480549 is a deficient number, since it is larger than the sum of its proper divisors (2510992315).

168236480549 is an equidigital number, since it uses as much as digits as its factorization.

168236480549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510992314.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 168236480549 in words is "one hundred sixty-eight billion, two hundred thirty-six million, four hundred eighty thousand, five hundred forty-nine".