6403666663046 has 8 divisors (see below), whose sum is σ = 9608270555880. Its totient is φ = 3200909811088.

The previous prime is 6403666663033. The next prime is 6403666663081.

It is a happy number.

6403666663046 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 6403666662982 and 6403666663000.

It is a congruent 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, 461751551 + ... + 461765418.

It is an arithmetic number, because the mean of its divisors is an integer number (1201033819485).

Almost surely, 2^{6403666663046} is an apocalyptic number.

6403666663046 is a deficient number, since it is larger than the sum of its proper divisors (3204603892834).

6403666663046 is a wasteful number, since it uses less digits than its factorization.

6403666663046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923520438.

The product of its (nonzero) digits is 40310784, while the sum is 56.

The spelling of 6403666663046 in words is "six trillion, four hundred three billion, six hundred sixty-six million, six hundred sixty-three thousand, forty-six".