660436053106 has 8 divisors (see below), whose sum is σ = 990717382764. Its totient is φ = 330196925520.

The previous prime is 660436053077. The next prime is 660436053119. The reversal of 660436053106 is 601350634066.

It can be written as a sum of positive squares in 2 ways, for example, as 435413899881 + 225022153225 = 659859^2 + 474365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 10511365 + ... + 10574008.

Almost surely, 2^660436053106 is an apocalyptic number.

660436053106 is a deficient number, since it is larger than the sum of its proper divisors (330281329658).

660436053106 is a wasteful number, since it uses less digits than its factorization.

660436053106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21101036.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 660436053106 in words is "six hundred sixty billion, four hundred thirty-six million, fifty-three thousand, one hundred six".