75605663660660 has 24 divisors (see below), whose sum is σ = 181453592785920. Its totient is φ = 25921941826464.

The previous prime is 75605663660647. The next prime is 75605663660749. The reversal of 75605663660660 is 6606636650657.

It is a junction number, because it is equal to n+sod(n) for n = 75605663660593 and 75605663660602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270020227220 + ... + 270020227499.

It is an arithmetic number, because the mean of its divisors is an integer number (7560566366080).

Almost surely, 2^{75605663660660} is an apocalyptic number.

75605663660660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75605663660660 is an abundant number, since it is smaller than the sum of its proper divisors (105847929125260).

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

75605663660660 is a wasteful number, since it uses less digits than its factorization.

75605663660660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540040454735 (or 540040454733 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 62.

The spelling of 75605663660660 in words is "seventy-five trillion, six hundred five billion, six hundred sixty-three million, six hundred sixty thousand, six hundred sixty".