660452128370 has 16 divisors (see below), whose sum is σ = 1188856212120. Its totient is φ = 264171433344.

The previous prime is 660452128361. The next prime is 660452128393. The reversal of 660452128370 is 73821254066.

It can be written as a sum of positive squares in 4 ways, for example, as 626097135169 + 34354993201 = 791263^2 + 185351^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879125 + ... + 1446984.

Almost surely, 2^660452128370 is an apocalyptic number.

660452128370 is a deficient number, since it is larger than the sum of its proper divisors (528404083750).

660452128370 is a wasteful number, since it uses less digits than its factorization.

660452128370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354509.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 660452128370 in words is "six hundred sixty billion, four hundred fifty-two million, one hundred twenty-eight thousand, three hundred seventy".