6403056266 has 8 divisors (see below), whose sum is σ = 9613140384. Its totient is φ = 3198676140.

The previous prime is 6403056251. The next prime is 6403056271. The reversal of 6403056266 is 6626503046.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423190 + ... + 1427681.

It is an arithmetic number, because the mean of its divisors is an integer number (1201642548).

Almost surely, 2^6403056266 is an apocalyptic number.

6403056266 is a deficient number, since it is larger than the sum of its proper divisors (3210084118).

6403056266 is a wasteful number, since it uses less digits than its factorization.

6403056266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851996.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 6403056266 is about 80019.0993825849. The cubic root of 6403056266 is about 1856.9310266246.

The spelling of 6403056266 in words is "six billion, four hundred three million, fifty-six thousand, two hundred sixty-six".