660615615079 has 8 divisors (see below), whose sum is σ = 755393675648. Its totient is φ = 565938654840.

The previous prime is 660615615059. The next prime is 660615615089. The reversal of 660615615079 is 970516516066.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660615615079 - 2²³ = 660607226471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660615615059) 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, 25261077 + ... + 25287214.

It is an arithmetic number, because the mean of its divisors is an integer number (94424209456).

Almost surely, 2^660615615079 is an apocalyptic number.

660615615079 is a deficient number, since it is larger than the sum of its proper divisors (94778060569).

660615615079 is a wasteful number, since it uses less digits than its factorization.

660615615079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50550165.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 660615615079 in words is "six hundred sixty billion, six hundred fifteen million, six hundred fifteen thousand, seventy-nine".