665001506115 has 48 divisors (see below), whose sum is σ = 1192728382560. Its totient is φ = 342526947840.

The previous prime is 665001506107. The next prime is 665001506119. The reversal of 665001506115 is 511605100566.

It is not a de Polignac number, because 665001506115 - 2³ = 665001506107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 665001506115.

It is not an unprimeable number, because it can be changed into a prime (665001506119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1758516 + ... + 2102945.

It is an arithmetic number, because the mean of its divisors is an integer number (24848507970).

Almost surely, 2^665001506115 is an apocalyptic number.

665001506115 is a deficient number, since it is larger than the sum of its proper divisors (527726876445).

665001506115 is a wasteful number, since it uses less digits than its factorization.

665001506115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861604 (or 3861601 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 665001506115 in words is "six hundred sixty-five billion, one million, five hundred six thousand, one hundred fifteen".