660240304100 has 36 divisors (see below), whose sum is σ = 1542930806004. Its totient is φ = 243781034880.

The previous prime is 660240304093. The next prime is 660240304103. The reversal of 660240304100 is 1403042066.

It can be written as a sum of positive squares in 6 ways, for example, as 94023183424 + 566217120676 = 306632^2 + 752474^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 660240304100.

It is not an unprimeable number, because it can be changed into a prime (660240304103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253937279 + ... + 253939878.

Almost surely, 2^660240304100 is an apocalyptic number.

It is an amenable number.

660240304100 is an abundant number, since it is smaller than the sum of its proper divisors (882690501904).

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

660240304100 is a wasteful number, since it uses less digits than its factorization.

660240304100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507877184 (or 507877177 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 660240304100 its reverse (1403042066), we get a palindrome (661643346166).

The spelling of 660240304100 in words is "six hundred sixty billion, two hundred forty million, three hundred four thousand, one hundred".