20013770227667 has 8 divisors (see below), whose sum is σ = 20440523108352. Its totient is φ = 19587056013000.

The previous prime is 20013770227663. The next prime is 20013770227673. The reversal of 20013770227667 is 76672207731002.

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 20013770227667 - 2² = 20013770227663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013770227663) 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, 8619059 + ... + 10691852.

It is an arithmetic number, because the mean of its divisors is an integer number (2555065388544).

Almost surely, 2^{20013770227667} is an apocalyptic number.

20013770227667 is a deficient number, since it is larger than the sum of its proper divisors (426752880685).

20013770227667 is a wasteful number, since it uses less digits than its factorization.

20013770227667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19333009.

The product of its (nonzero) digits is 2074464, while the sum is 50.

Adding to 20013770227667 its reverse (76672207731002), we get a palindrome (96685977958669).

The spelling of 20013770227667 in words is "twenty trillion, thirteen billion, seven hundred seventy million, two hundred twenty-seven thousand, six hundred sixty-seven".