21653054116630 has 32 divisors (see below), whose sum is σ = 39165544958400. Its totient is φ = 8619027215232.

The previous prime is 21653054116609. The next prime is 21653054116637. The reversal of 21653054116630 is 3661145035612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21653054116637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2121951 + ... + 6914389.

It is an arithmetic number, because the mean of its divisors is an integer number (1223923279950).

Almost surely, 2^{21653054116630} is an apocalyptic number.

21653054116630 is a deficient number, since it is larger than the sum of its proper divisors (17512490841770).

21653054116630 is a wasteful number, since it uses less digits than its factorization.

21653054116630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794648.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 21653054116630 in words is "twenty-one trillion, six hundred fifty-three billion, fifty-four million, one hundred sixteen thousand, six hundred thirty".