20067440217 has 16 divisors (see below), whose sum is σ = 29203892928. Its totient is φ = 12155881280.

The previous prime is 20067440171. The next prime is 20067440233. The reversal of 20067440217 is 71204476002.

It is a cyclic number.

It is not a de Polignac number, because 20067440217 - 2⁷ = 20067440089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20067440257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88998 + ... + 219215.

It is an arithmetic number, because the mean of its divisors is an integer number (1825243308).

Almost surely, 2^20067440217 is an apocalyptic number.

It is an amenable number.

20067440217 is a deficient number, since it is larger than the sum of its proper divisors (9136452711).

20067440217 is a wasteful number, since it uses less digits than its factorization.

20067440217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310200.

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 20067440217 in words is "twenty billion, sixty-seven million, four hundred forty thousand, two hundred seventeen".