21314766653107 has 4 divisors (see below), whose sum is σ = 21521706135280. Its totient is φ = 21107827170936.

The previous prime is 21314766653069. The next prime is 21314766653129. The reversal of 21314766653107 is 70135666741312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21314766653107 - 2¹⁹ = 21314766128819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21314766656107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103469740932 + ... + 103469741137.

It is an arithmetic number, because the mean of its divisors is an integer number (5380426533820).

Almost surely, 2^{21314766653107} is an apocalyptic number.

21314766653107 is a deficient number, since it is larger than the sum of its proper divisors (206939482173).

21314766653107 is a wasteful number, since it uses less digits than its factorization.

21314766653107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206939482172.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 21314766653107 in words is "twenty-one trillion, three hundred fourteen billion, seven hundred sixty-six million, six hundred fifty-three thousand, one hundred seven".