396701878161 has 16 divisors (see below), whose sum is σ = 575973691200. Its totient is φ = 241908948288.

The previous prime is 396701878129. The next prime is 396701878163. The reversal of 396701878161 is 161878107693.

It is a happy number.

It is not a de Polignac number, because 396701878161 - 2⁵ = 396701878129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (396701878163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119992866 + ... + 119996171.

It is an arithmetic number, because the mean of its divisors is an integer number (35998355700).

Almost surely, 2^396701878161 is an apocalyptic number.

It is an amenable number.

396701878161 is a deficient number, since it is larger than the sum of its proper divisors (179271813039).

396701878161 is a wasteful number, since it uses less digits than its factorization.

396701878161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239989088.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The spelling of 396701878161 in words is "three hundred ninety-six billion, seven hundred one million, eight hundred seventy-eight thousand, one hundred sixty-one".