660457542216 has 64 divisors (see below), whose sum is σ = 1675161241920. Its totient is φ = 216955238400.

The previous prime is 660457542211. The next prime is 660457542221. The reversal of 660457542216 is 612245754066.

It is an interprime number because it is at equal distance from previous prime (660457542211) and next prime (660457542221).

It is not an unprimeable number, because it can be changed into a prime (660457542211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1947211 + ... + 2261093.

It is an arithmetic number, because the mean of its divisors is an integer number (26174394405).

Almost surely, 2^660457542216 is an apocalyptic number.

It is an amenable number.

660457542216 is an abundant number, since it is smaller than the sum of its proper divisors (1014703699704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660457542216 is a wasteful number, since it uses less digits than its factorization.

660457542216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315166 (or 315162 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 660457542216 in words is "six hundred sixty billion, four hundred fifty-seven million, five hundred forty-two thousand, two hundred sixteen".