395656866403 has 4 divisors (see below), whose sum is σ = 395878773328. Its totient is φ = 395434959480.

The previous prime is 395656866401. The next prime is 395656866443. The reversal of 395656866403 is 304668656593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 395656866403 - 2¹ = 395656866401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395656866401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110950788 + ... + 110954353.

It is an arithmetic number, because the mean of its divisors is an integer number (98969693332).

Almost surely, 2^395656866403 is an apocalyptic number.

395656866403 is a deficient number, since it is larger than the sum of its proper divisors (221906925).

395656866403 is a wasteful number, since it uses less digits than its factorization.

395656866403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221906924.

The product of its (nonzero) digits is 83980800, while the sum is 61.

The spelling of 395656866403 in words is "three hundred ninety-five billion, six hundred fifty-six million, eight hundred sixty-six thousand, four hundred three".