2656231506205 has 8 divisors (see below), whose sum is σ = 3232371861504. Its totient is φ = 2095055835600.

The previous prime is 2656231506197. The next prime is 2656231506281. The reversal of 2656231506205 is 5026051326562.

2656231506205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2656231506205 - 2³ = 2656231506197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3741170781 + ... + 3741171490.

It is an arithmetic number, because the mean of its divisors is an integer number (404046482688).

Almost surely, 2^{2656231506205} is an apocalyptic number.

It is an amenable number.

2656231506205 is a deficient number, since it is larger than the sum of its proper divisors (576140355299).

2656231506205 is an equidigital number, since it uses as much as digits as its factorization.

2656231506205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482342347.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 2656231506205 in words is "two trillion, six hundred fifty-six billion, two hundred thirty-one million, five hundred six thousand, two hundred five".