403316256066 has 16 divisors (see below), whose sum is σ = 806648126688. Its totient is φ = 134436149600.

The previous prime is 403316256047. The next prime is 403316256089. The reversal of 403316256066 is 660652613304.

It is a happy 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, 300315 + ... + 947006.

It is an arithmetic number, because the mean of its divisors is an integer number (50415507918).

Almost surely, 2^403316256066 is an apocalyptic number.

403316256066 is an abundant number, since it is smaller than the sum of its proper divisors (403331870622).

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

403316256066 is a wasteful number, since it uses less digits than its factorization.

403316256066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301217.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 403316256066 in words is "four hundred three billion, three hundred sixteen million, two hundred fifty-six thousand, sixty-six".