20005111464613 has 8 divisors (see below), whose sum is σ = 21833080397856. Its totient is φ = 18178696270800.

The previous prime is 20005111464593. The next prime is 20005111464629. The reversal of 20005111464613 is 31646411150002.

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-20005111464613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005111464673) 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 7 ways as a sum of consecutive naturals, for example, 388407931 + ... + 388459432.

It is an arithmetic number, because the mean of its divisors is an integer number (2729135049732).

Almost surely, 2^{20005111464613} is an apocalyptic number.

It is an amenable number.

20005111464613 is a deficient number, since it is larger than the sum of its proper divisors (1827968933243).

20005111464613 is a wasteful number, since it uses less digits than its factorization.

20005111464613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776869715.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 20005111464613 in words is "twenty trillion, five billion, one hundred eleven million, four hundred sixty-four thousand, six hundred thirteen".