23217665668071 has 16 divisors (see below), whose sum is σ = 35381137708800. Its totient is φ = 13266548408448.

The previous prime is 23217665668069. The next prime is 23217665668103. The reversal of 23217665668071 is 17086656671232.

It is not a de Polignac number, because 23217665668071 - 2¹ = 23217665668069 is a prime.

It is a super-2 number, since 2×23217665668071² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23217665667996 and 23217665668014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23217665668051) 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, 28299106 + ... + 29107983.

It is an arithmetic number, because the mean of its divisors is an integer number (2211321106800).

Almost surely, 2^{23217665668071} is an apocalyptic number.

23217665668071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23217665668071 is a deficient number, since it is larger than the sum of its proper divisors (12163472040729).

23217665668071 is a wasteful number, since it uses less digits than its factorization.

23217665668071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57426358.

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 23217665668071 in words is "twenty-three trillion, two hundred seventeen billion, six hundred sixty-five million, six hundred sixty-eight thousand, seventy-one".