660215663046 has 48 divisors (see below), whose sum is σ = 1433528438784. Its totient is φ = 219601195632.

The previous prime is 660215663027. The next prime is 660215663069. The reversal of 660215663046 is 640366512066.

660215663046 is a `hidden beast` number, since 6 + 6 + 0 + 2 + 1 + 5 + 6 + 630 + 4 + 6 = 666.

It is a super-3 number, since 3×660215663046³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 660215662992 and 660215663010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39050631 + ... + 39067533.

It is an arithmetic number, because the mean of its divisors is an integer number (29865175808).

Almost surely, 2^660215663046 is an apocalyptic number.

660215663046 is an abundant number, since it is smaller than the sum of its proper divisors (773312775738).

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

660215663046 is a wasteful number, since it uses less digits than its factorization.

660215663046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21425 (or 21422 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 660215663046 in words is "six hundred sixty billion, two hundred fifteen million, six hundred sixty-three thousand, forty-six".