660671101544 has 16 divisors (see below), whose sum is σ = 1254438801600. Its totient is φ = 326154087792.

The previous prime is 660671101543. The next prime is 660671101549. The reversal of 660671101544 is 445101176066.

It is not an unprimeable number, because it can be changed into a prime (660671101543) by changing a digit.

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, 522682202 + ... + 522683465.

It is an arithmetic number, because the mean of its divisors is an integer number (78402425100).

Almost surely, 2^660671101544 is an apocalyptic number.

It is an amenable number.

660671101544 is a deficient number, since it is larger than the sum of its proper divisors (593767700056).

660671101544 is a wasteful number, since it uses less digits than its factorization.

660671101544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045365752 (or 1045365748 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

It can be divided in two parts, 66067 and 1101544, that added together give a palindrome (1167611).

The spelling of 660671101544 in words is "six hundred sixty billion, six hundred seventy-one million, one hundred one thousand, five hundred forty-four".