660611610112 has 40 divisors (see below), whose sum is σ = 1324150322616. Its totient is φ = 329250435072.

The previous prime is 660611610101. The next prime is 660611610161. The reversal of 660611610112 is 211016116066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900858 + ... + 2221369.

Almost surely, 2^660611610112 is an apocalyptic number.

It is an amenable number.

660611610112 is an abundant number, since it is smaller than the sum of its proper divisors (663538712504).

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

660611610112 is an equidigital number, since it uses as much as digits as its factorization.

660611610112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122558 (or 4122542 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

Adding to 660611610112 its reverse (211016116066), we get a palindrome (871627726178).

The spelling of 660611610112 in words is "six hundred sixty billion, six hundred eleven million, six hundred ten thousand, one hundred twelve".