331464135160221 has 16 divisors (see below), whose sum is σ = 509808656484864. Its totient is φ = 187637908287024.

The previous prime is 331464135160189. The next prime is 331464135160261. The reversal of 331464135160221 is 122061531464133.

It is not a de Polignac number, because 331464135160221 - 2⁵ = 331464135160189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331464135160261) 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, 73757037175 + ... + 73757041668.

It is an arithmetic number, because the mean of its divisors is an integer number (31863041030304).

Almost surely, 2^{331464135160221} is an apocalyptic number.

It is an amenable number.

331464135160221 is a deficient number, since it is larger than the sum of its proper divisors (178344521324643).

331464135160221 is a wasteful number, since it uses less digits than its factorization.

331464135160221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147514078960.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 331464135160221 in words is "three hundred thirty-one trillion, four hundred sixty-four billion, one hundred thirty-five million, one hundred sixty thousand, two hundred twenty-one".