16456025601223 has 4 divisors (see below), whose sum is σ = 17721873724408. Its totient is φ = 15190177478040.

The previous prime is 16456025601217. The next prime is 16456025601277. The reversal of 16456025601223 is 32210652065461.

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 16456025601223 - 2³³ = 16447435666631 is a prime.

It is a super-4 number, since 4×16456025601223⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16456025601223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16456025601203) 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, 632924061573 + ... + 632924061598.

It is an arithmetic number, because the mean of its divisors is an integer number (4430468431102).

Almost surely, 2^{16456025601223} is an apocalyptic number.

16456025601223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16456025601223 is a deficient number, since it is larger than the sum of its proper divisors (1265848123185).

16456025601223 is a wasteful number, since it uses less digits than its factorization.

16456025601223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265848123184.

The product of its (nonzero) digits is 518400, while the sum is 43.

Adding to 16456025601223 its reverse (32210652065461), we get a palindrome (48666677666684).

The spelling of 16456025601223 in words is "sixteen trillion, four hundred fifty-six billion, twenty-five million, six hundred one thousand, two hundred twenty-three".