21164602334653 has 8 divisors (see below), whose sum is σ = 21172997260800. Its totient is φ = 21156209078400.

The previous prime is 21164602334651. The next prime is 21164602334741. The reversal of 21164602334653 is 35643320646112.

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 21164602334653 - 2¹ = 21164602334651 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 (21164602334651) 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, 25247853 + ... + 26072653.

It is an arithmetic number, because the mean of its divisors is an integer number (2646624657600).

Almost surely, 2^{21164602334653} is an apocalyptic number.

It is an amenable number.

21164602334653 is a deficient number, since it is larger than the sum of its proper divisors (8394926147).

21164602334653 is an equidigital number, since it uses as much as digits as its factorization.

21164602334653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834947.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 21164602334653 in words is "twenty-one trillion, one hundred sixty-four billion, six hundred two million, three hundred thirty-four thousand, six hundred fifty-three".