331436561601 has 16 divisors (see below), whose sum is σ = 461229751296. Its totient is φ = 211304732496.

The previous prime is 331436561587. The next prime is 331436561611. The reversal of 331436561601 is 106165634133.

It is not a de Polignac number, because 331436561601 - 2¹⁰ = 331436560577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331436561601.

It is not an unprimeable number, because it can be changed into a prime (331436561611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204165 + ... + 839378.

It is an arithmetic number, because the mean of its divisors is an integer number (28826859456).

Almost surely, 2^331436561601 is an apocalyptic number.

It is an amenable number.

331436561601 is a deficient number, since it is larger than the sum of its proper divisors (129793189695).

331436561601 is a wasteful number, since it uses less digits than its factorization.

331436561601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048172.

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 331436561601 in words is "three hundred thirty-one billion, four hundred thirty-six million, five hundred sixty-one thousand, six hundred one".