660615025163 has 8 divisors (see below), whose sum is σ = 665130312000. Its totient is φ = 656100827008.

The previous prime is 660615025153. The next prime is 660615025199. The reversal of 660615025163 is 361520516066.

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 660615025163 - 2⁶ = 660615025099 is a prime.

It is a super-2 number, since 2×660615025163² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660615025163.

It is not an unprimeable number, because it can be changed into a prime (660615025153) 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, 964718 + ... + 1500636.

It is an arithmetic number, because the mean of its divisors is an integer number (83141289000).

Almost surely, 2^660615025163 is an apocalyptic number.

660615025163 is a deficient number, since it is larger than the sum of its proper divisors (4515286837).

660615025163 is a wasteful number, since it uses less digits than its factorization.

660615025163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544341.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 660615025163 in words is "six hundred sixty billion, six hundred fifteen million, twenty-five thousand, one hundred sixty-three".