21617116701 has 8 divisors (see below), whose sum is σ = 29033208384. Its totient is φ = 14306218080.

The previous prime is 21617116679. The next prime is 21617116733. The reversal of 21617116701 is 10761171612.

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

It is not a de Polignac number, because 21617116701 - 2⁵ = 21617116669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21607116701) 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, 26297785 + ... + 26298606.

It is an arithmetic number, because the mean of its divisors is an integer number (3629151048).

Almost surely, 2^21617116701 is an apocalyptic number.

It is an amenable number.

21617116701 is a deficient number, since it is larger than the sum of its proper divisors (7416091683).

21617116701 is a wasteful number, since it uses less digits than its factorization.

21617116701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52596531.

The product of its (nonzero) digits is 3528, while the sum is 33.

The spelling of 21617116701 in words is "twenty-one billion, six hundred seventeen million, one hundred sixteen thousand, seven hundred one".