331344545405 has 16 divisors (see below), whose sum is σ = 398318801664. Its totient is φ = 264605590080.

The previous prime is 331344545383. The next prime is 331344545407. The reversal of 331344545405 is 504545443133.

It is a happy number.

It is not a de Polignac number, because 331344545405 - 2⁶ = 331344545341 is a prime.

It is a super-2 number, since 2×331344545405² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331344545407) 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, 20558300 + ... + 20574410.

It is an arithmetic number, because the mean of its divisors is an integer number (24894925104).

Almost surely, 2^331344545405 is an apocalyptic number.

It is an amenable number.

331344545405 is a deficient number, since it is larger than the sum of its proper divisors (66974256259).

331344545405 is a wasteful number, since it uses less digits than its factorization.

331344545405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 331344545405 its reverse (504545443133), we get a palindrome (835889988538).

The spelling of 331344545405 in words is "three hundred thirty-one billion, three hundred forty-four million, five hundred forty-five thousand, four hundred five".