21146554160341 has 4 divisors (see below), whose sum is σ = 21246774796384. Its totient is φ = 21046333524300.

The previous prime is 21146554160227. The next prime is 21146554160393. The reversal of 21146554160341 is 14306145564112.

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 21146554160341 - 2¹³ = 21146554152149 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 (21146554164341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50110317705 + ... + 50110318126.

It is an arithmetic number, because the mean of its divisors is an integer number (5311693699096).

Almost surely, 2^{21146554160341} is an apocalyptic number.

It is an amenable number.

21146554160341 is a deficient number, since it is larger than the sum of its proper divisors (100220636043).

21146554160341 is a wasteful number, since it uses less digits than its factorization.

21146554160341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100220636042.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 21146554160341 in words is "twenty-one trillion, one hundred forty-six billion, five hundred fifty-four million, one hundred sixty thousand, three hundred forty-one".