20775271935667 has 8 divisors (see below), whose sum is σ = 21710724558336. Its totient is φ = 19860378711432.

The previous prime is 20775271935643. The next prime is 20775271935679. The reversal of 20775271935667 is 76653917257702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20775271935667 is a prime.

It is a super-2 number, since 2×20775271935667² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20775271936667) 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, 5139847543 + ... + 5139851584.

It is an arithmetic number, because the mean of its divisors is an integer number (2713840569792).

Almost surely, 2^{20775271935667} is an apocalyptic number.

20775271935667 is a deficient number, since it is larger than the sum of its proper divisors (935452622669).

20775271935667 is a wasteful number, since it uses less digits than its factorization.

20775271935667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10279699217.

The product of its (nonzero) digits is 233377200, while the sum is 67.

The spelling of 20775271935667 in words is "twenty trillion, seven hundred seventy-five billion, two hundred seventy-one million, nine hundred thirty-five thousand, six hundred sixty-seven".