395666677701 has 24 divisors (see below), whose sum is σ = 605162989080. Its totient is φ = 248250894336.

The previous prime is 395666677699. The next prime is 395666677733. The reversal of 395666677701 is 107776666593.

It can be written as a sum of positive squares in 4 ways, for example, as 258373476 + 395408304225 = 16074^2 + 628815^2 .

It is not a de Polignac number, because 395666677701 - 2¹ = 395666677699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395666677501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5183851 + ... + 5259623.

It is an arithmetic number, because the mean of its divisors is an integer number (25215124545).

Almost surely, 2^395666677701 is an apocalyptic number.

It is an amenable number.

395666677701 is a deficient number, since it is larger than the sum of its proper divisors (209496311379).

395666677701 is a wasteful number, since it uses less digits than its factorization.

395666677701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109925 (or 109922 counting only the distinct ones).

The product of its (nonzero) digits is 60011280, while the sum is 63.

The spelling of 395666677701 in words is "three hundred ninety-five billion, six hundred sixty-six million, six hundred seventy-seven thousand, seven hundred one".