21168480117 has 8 divisors (see below), whose sum is σ = 28228816224. Its totient is φ = 14110232048.

The previous prime is 21168480103. The next prime is 21168480119. The reversal of 21168480117 is 71108486112.

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 21168480117 - 2⁴ = 21168480101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21168480119) 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, 498198 + ... + 539015.

It is an arithmetic number, because the mean of its divisors is an integer number (3528602028).

Almost surely, 2^21168480117 is an apocalyptic number.

It is an amenable number.

21168480117 is a deficient number, since it is larger than the sum of its proper divisors (7060336107).

21168480117 is a wasteful number, since it uses less digits than its factorization.

21168480117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044019.

The product of its (nonzero) digits is 21504, while the sum is 39.

The spelling of 21168480117 in words is "twenty-one billion, one hundred sixty-eight million, four hundred eighty thousand, one hundred seventeen".