660622241200 has 60 divisors (see below), whose sum is σ = 1590079179808. Its totient is φ = 263760364800.

The previous prime is 660622241143. The next prime is 660622241221. The reversal of 660622241200 is 2142226066.

It is a super-2 number, since 2×660622241200² (a number of 24 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1309992 + ... + 1742791.

Almost surely, 2^660622241200 is an apocalyptic number.

It is an amenable number.

660622241200 is an abundant number, since it is smaller than the sum of its proper divisors (929456938608).

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

660622241200 is a wasteful number, since it uses less digits than its factorization.

660622241200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053342 (or 3053331 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 660622241200 its reverse (2142226066), we get a palindrome (662764467266).

The spelling of 660622241200 in words is "six hundred sixty billion, six hundred twenty-two million, two hundred forty-one thousand, two hundred".