16454040413 has 4 divisors (see below), whose sum is σ = 17320042560. Its totient is φ = 15588038268.

The previous prime is 16454040397. The next prime is 16454040437. The reversal of 16454040413 is 31404045461.

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 16454040413 - 2⁴ = 16454040397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16454040413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16454040443) 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, 433001045 + ... + 433001082.

It is an arithmetic number, because the mean of its divisors is an integer number (4330010640).

Almost surely, 2^16454040413 is an apocalyptic number.

It is an amenable number.

16454040413 is a deficient number, since it is larger than the sum of its proper divisors (866002147).

16454040413 is an equidigital number, since it uses as much as digits as its factorization.

16454040413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866002146.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 16454040413 its reverse (31404045461), we get a palindrome (47858085874).

The spelling of 16454040413 in words is "sixteen billion, four hundred fifty-four million, forty thousand, four hundred thirteen".