21441610226553 has 8 divisors (see below), whose sum is σ = 31187796693216. Its totient is φ = 12994915288800.

The previous prime is 21441610226551. The next prime is 21441610226579. The reversal of 21441610226553 is 35562201614412.

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

It is not a de Polignac number, because 21441610226553 - 2¹ = 21441610226551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21441610226551) 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, 324872882188 + ... + 324872882253.

It is an arithmetic number, because the mean of its divisors is an integer number (3898474586652).

Almost surely, 2^{21441610226553} is an apocalyptic number.

It is an amenable number.

21441610226553 is a deficient number, since it is larger than the sum of its proper divisors (9746186466663).

21441610226553 is a wasteful number, since it uses less digits than its factorization.

21441610226553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649745764455.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 21441610226553 in words is "twenty-one trillion, four hundred forty-one billion, six hundred ten million, two hundred twenty-six thousand, five hundred fifty-three".