20590905601 has 8 divisors (see below), whose sum is σ = 23533351424. Its totient is φ = 17648681760.

The previous prime is 20590905593. The next prime is 20590905611. The reversal of 20590905601 is 10650909502.

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 20590905601 - 2³ = 20590905593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20590905611) 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, 272656 + ... + 339886.

It is an arithmetic number, because the mean of its divisors is an integer number (2941668928).

Almost surely, 2^20590905601 is an apocalyptic number.

It is an amenable number.

20590905601 is a deficient number, since it is larger than the sum of its proper divisors (2942445823).

20590905601 is an equidigital number, since it uses as much as digits as its factorization.

20590905601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110991.

The product of its (nonzero) digits is 24300, while the sum is 37.

The spelling of 20590905601 in words is "twenty billion, five hundred ninety million, nine hundred five thousand, six hundred one".