20605600105607 has 8 divisors (see below), whose sum is σ = 22494633288960. Its totient is φ = 18719199723960.

The previous prime is 20605600105589. The next prime is 20605600105613. The reversal of 20605600105607 is 70650100650602.

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 20605600105607 - 2²⁴ = 20605583328391 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 (20605600107607) 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, 658184057 + ... + 658215362.

It is an arithmetic number, because the mean of its divisors is an integer number (2811829161120).

Almost surely, 2^{20605600105607} is an apocalyptic number.

20605600105607 is a deficient number, since it is larger than the sum of its proper divisors (1889033183353).

20605600105607 is a wasteful number, since it uses less digits than its factorization.

20605600105607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316400853.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 20605600105607 in words is "twenty trillion, six hundred five billion, six hundred million, one hundred five thousand, six hundred seven".