21533051054641 has 8 divisors (see below), whose sum is σ = 24609242395584. Its totient is φ = 18456870011280.

The previous prime is 21533051054623. The next prime is 21533051054651. The reversal of 21533051054641 is 14645015033512.

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 21533051054641 - 2¹¹ = 21533051052593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21533051054594 and 21533051054603.

It is not an unprimeable number, because it can be changed into a prime (21533051054651) 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, 2599791 + ... + 7058683.

It is an arithmetic number, because the mean of its divisors is an integer number (3076155299448).

Almost surely, 2^{21533051054641} is an apocalyptic number.

It is an amenable number.

21533051054641 is a deficient number, since it is larger than the sum of its proper divisors (3076191340943).

21533051054641 is an equidigital number, since it uses as much as digits as its factorization.

21533051054641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148791.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 21533051054641 in words is "twenty-one trillion, five hundred thirty-three billion, fifty-one million, fifty-four thousand, six hundred forty-one".