56667201242217 has 16 divisors (see below), whose sum is σ = 75582353905920. Its totient is φ = 37765093616000.

The previous prime is 56667201242149. The next prime is 56667201242227. The reversal of 56667201242217 is 71224210276665.

It is a cyclic number.

It is not a de Polignac number, because 56667201242217 - 2¹⁰ = 56667201241193 is a prime.

It is a super-2 number, since 2×56667201242217² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56667201242217.

It is not an unprimeable number, because it can be changed into a prime (56667201242227) 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, 102812467 + ... + 103362167.

It is an arithmetic number, because the mean of its divisors is an integer number (4723897119120).

Almost surely, 2^{56667201242217} is an apocalyptic number.

It is an amenable number.

56667201242217 is a deficient number, since it is larger than the sum of its proper divisors (18915152663703).

56667201242217 is a wasteful number, since it uses less digits than its factorization.

56667201242217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561504.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 56667201242217 in words is "fifty-six trillion, six hundred sixty-seven billion, two hundred one million, two hundred forty-two thousand, two hundred seventeen".