16321655451301 has 4 divisors (see below), whose sum is σ = 16338125336704. Its totient is φ = 16305185565900.

The previous prime is 16321655451271. The next prime is 16321655451337. The reversal of 16321655451301 is 10315455612361.

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 16321655451301 - 2⁷ = 16321655451173 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 (16321655451401) 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, 8234941215 + ... + 8234943196.

It is an arithmetic number, because the mean of its divisors is an integer number (4084531334176).

Almost surely, 2^{16321655451301} is an apocalyptic number.

It is an amenable number.

16321655451301 is a deficient number, since it is larger than the sum of its proper divisors (16469885403).

16321655451301 is an equidigital number, since it uses as much as digits as its factorization.

16321655451301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16469885402.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 16321655451301 in words is "sixteen trillion, three hundred twenty-one billion, six hundred fifty-five million, four hundred fifty-one thousand, three hundred one".