665411630575 has 12 divisors (see below), whose sum is σ = 834381328320. Its totient is φ = 526348074560.

The previous prime is 665411630567. The next prime is 665411630623. The reversal of 665411630575 is 575036114566.

It is not a de Polignac number, because 665411630575 - 2³ = 665411630567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149528479 + ... + 149532928.

It is an arithmetic number, because the mean of its divisors is an integer number (69531777360).

Almost surely, 2^665411630575 is an apocalyptic number.

665411630575 is a deficient number, since it is larger than the sum of its proper divisors (168969697745).

665411630575 is a wasteful number, since it uses less digits than its factorization.

665411630575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299061506 (or 299061501 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 665411630575 in words is "six hundred sixty-five billion, four hundred eleven million, six hundred thirty thousand, five hundred seventy-five".