21455450303151 has 8 divisors (see below), whose sum is σ = 28607601092400. Its totient is φ = 14303466524672.

The previous prime is 21455450303143. The next prime is 21455450303191. The reversal of 21455450303151 is 15130305455412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21455450303151 - 2³ = 21455450303143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21455450303141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41452626 + ... + 41967023.

It is an arithmetic number, because the mean of its divisors is an integer number (3575950136550).

Almost surely, 2^{21455450303151} is an apocalyptic number.

21455450303151 is a deficient number, since it is larger than the sum of its proper divisors (7152150789249).

21455450303151 is an equidigital number, since it uses as much as digits as its factorization.

21455450303151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83505385.

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 21455450303151 its reverse (15130305455412), we get a palindrome (36585755758563).

The spelling of 21455450303151 in words is "twenty-one trillion, four hundred fifty-five billion, four hundred fifty million, three hundred three thousand, one hundred fifty-one".