20040370684017 has 8 divisors (see below), whose sum is σ = 26869770750240. Its totient is φ = 13285608870240.

The previous prime is 20040370683947. The next prime is 20040370684049. The reversal of 20040370684017 is 71048607304002.

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

It is not a de Polignac number, because 20040370684017 - 2²⁶ = 20040303575153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20040370684017.

It is not an unprimeable number, because it can be changed into a prime (20040370684097) 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, 18659562484 + ... + 18659563557.

It is an arithmetic number, because the mean of its divisors is an integer number (3358721343780).

Almost surely, 2^{20040370684017} is an apocalyptic number.

It is an amenable number.

20040370684017 is a deficient number, since it is larger than the sum of its proper divisors (6829400066223).

20040370684017 is a wasteful number, since it uses less digits than its factorization.

20040370684017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37319126223.

The product of its (nonzero) digits is 225792, while the sum is 42.

Adding to 20040370684017 its reverse (71048607304002), we get a palindrome (91088977988019).

The spelling of 20040370684017 in words is "twenty trillion, forty billion, three hundred seventy million, six hundred eighty-four thousand, seventeen".