2255666790 has 32 divisors (see below), whose sum is σ = 5830032096. Its totient is φ = 555240960.

The previous prime is 2255666773. The next prime is 2255666797. The reversal of 2255666790 is 976665522.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255666797) 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 15 ways as a sum of consecutive naturals, for example, 2891491 + ... + 2892270.

It is an arithmetic number, because the mean of its divisors is an integer number (182188503).

Almost surely, 2^2255666790 is an apocalyptic number.

2255666790 is an abundant number, since it is smaller than the sum of its proper divisors (3574365306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2255666790 is a wasteful number, since it uses less digits than its factorization.

2255666790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783784.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The square root of 2255666790 is about 47493.8605506017. The cubic root of 2255666790 is about 1311.4698630751.

The spelling of 2255666790 in words is "two billion, two hundred fifty-five million, six hundred sixty-six thousand, seven hundred ninety".