665055152210 has 16 divisors (see below), whose sum is σ = 1197108835992. Its totient is φ = 266019936000.

The previous prime is 665055152189. The next prime is 665055152213. The reversal of 665055152210 is 12251550566.

It can be written as a sum of positive squares in 4 ways, for example, as 582179682049 + 82875470161 = 763007^2 + 287881^2 .

It is not an unprimeable number, because it can be changed into a prime (665055152213) 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, 1855610 + ... + 2184810.

Almost surely, 2^665055152210 is an apocalyptic number.

665055152210 is a deficient number, since it is larger than the sum of its proper divisors (532053683782).

665055152210 is a wasteful number, since it uses less digits than its factorization.

665055152210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531229.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 665055152210 in words is "six hundred sixty-five billion, fifty-five million, one hundred fifty-two thousand, two hundred ten".