665314129041 has 16 divisors (see below), whose sum is σ = 899466765120. Its totient is φ = 437390694720.

The previous prime is 665314129031. The next prime is 665314129043. The reversal of 665314129041 is 140921413566.

It is a happy number.

It is not a de Polignac number, because 665314129041 - 2¹⁸ = 665313866897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665314128984 and 665314129002.

It is not an unprimeable number, because it can be changed into a prime (665314129043) 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, 4752330 + ... + 4890323.

It is an arithmetic number, because the mean of its divisors is an integer number (56216672820).

Almost surely, 2^665314129041 is an apocalyptic number.

It is an amenable number.

665314129041 is a deficient number, since it is larger than the sum of its proper divisors (234152636079).

665314129041 is a wasteful number, since it uses less digits than its factorization.

665314129041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642976.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 665314129041 in words is "six hundred sixty-five billion, three hundred fourteen million, one hundred twenty-nine thousand, forty-one".