660040482815 has 24 divisors (see below), whose sum is σ = 924325320672. Its totient is φ = 451143833280.

The previous prime is 660040482809. The next prime is 660040482823. The reversal of 660040482815 is 518284040066.

It is a happy number.

It is not a de Polignac number, because 660040482815 - 2³² = 655745515519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4255064 + ... + 4407453.

It is an arithmetic number, because the mean of its divisors is an integer number (38513555028).

Almost surely, 2^660040482815 is an apocalyptic number.

660040482815 is a deficient number, since it is larger than the sum of its proper divisors (264284837857).

660040482815 is a wasteful number, since it uses less digits than its factorization.

660040482815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8662847 (or 8662840 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 660040482815 in words is "six hundred sixty billion, forty million, four hundred eighty-two thousand, eight hundred fifteen".