660105632 has 24 divisors (see below), whose sum is σ = 1301632416. Its totient is φ = 329532352.

The previous prime is 660105601. The next prime is 660105637. The reversal of 660105632 is 236501066.

It is a junction number, because it is equal to n+sod(n) for n = 660105595 and 660105604.

It is not an unprimeable number, because it can be changed into a prime (660105637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4763 + ... + 36645.

It is an arithmetic number, because the mean of its divisors is an integer number (54234684).

Almost surely, 2^660105632 is an apocalyptic number.

It is an amenable number.

660105632 is a deficient number, since it is larger than the sum of its proper divisors (641526784).

660105632 is a wasteful number, since it uses less digits than its factorization.

660105632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32540 (or 32532 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 660105632 is about 25692.5209350893. The cubic root of 660105632 is about 870.7052158451.

Adding to 660105632 its reverse (236501066), we get a palindrome (896606698).

The spelling of 660105632 in words is "six hundred sixty million, one hundred five thousand, six hundred thirty-two".