665004140534 has 16 divisors (see below), whose sum is σ = 998411603280. Its totient is φ = 332200414080.

The previous prime is 665004140531. The next prime is 665004140579. The reversal of 665004140534 is 435041400566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665004140531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10017002 + ... + 10083170.

It is an arithmetic number, because the mean of its divisors is an integer number (62400725205).

Almost surely, 2^665004140534 is an apocalyptic number.

665004140534 is a deficient number, since it is larger than the sum of its proper divisors (333407462746).

665004140534 is a wasteful number, since it uses less digits than its factorization.

665004140534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70655.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 665004140534 in words is "six hundred sixty-five billion, four million, one hundred forty thousand, five hundred thirty-four".