2216660435207 has 8 divisors (see below), whose sum is σ = 2221481313792. Its totient is φ = 2211839875000.

The previous prime is 2216660435191. The next prime is 2216660435237. The reversal of 2216660435207 is 7025340666122.

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 2216660435207 - 2⁴ = 2216660435191 is a prime.

It is a super-3 number, since 3×2216660435207³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216660435237) 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, 18607082 + ... + 18725832.

It is an arithmetic number, because the mean of its divisors is an integer number (277685164224).

Almost surely, 2^{2216660435207} is an apocalyptic number.

2216660435207 is a deficient number, since it is larger than the sum of its proper divisors (4820878585).

2216660435207 is a wasteful number, since it uses less digits than its factorization.

2216660435207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159189.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 2216660435207 in words is "two trillion, two hundred sixteen billion, six hundred sixty million, four hundred thirty-five thousand, two hundred seven".