16451242257223 has 4 divisors (see below), whose sum is σ = 16476206206680. Its totient is φ = 16426278307768.

The previous prime is 16451242257133. The next prime is 16451242257287. The reversal of 16451242257223 is 32275224215461.

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

It is a cyclic number.

It is not a de Polignac number, because 16451242257223 - 2⁹ = 16451242256711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16451242287223) 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, 12481973740 + ... + 12481975057.

It is an arithmetic number, because the mean of its divisors is an integer number (4119051551670).

Almost surely, 2^{16451242257223} is an apocalyptic number.

16451242257223 is a deficient number, since it is larger than the sum of its proper divisors (24963949457).

16451242257223 is an equidigital number, since it uses as much as digits as its factorization.

16451242257223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24963949456.

The product of its digits is 1612800, while the sum is 46.

The spelling of 16451242257223 in words is "sixteen trillion, four hundred fifty-one billion, two hundred forty-two million, two hundred fifty-seven thousand, two hundred twenty-three".