7161605660 has 24 divisors (see below), whose sum is σ = 16406588016. Its totient is φ = 2604220160.

The previous prime is 7161605639. The next prime is 7161605699. The reversal of 7161605660 is 665061617.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 16276157 + ... + 16276596.

It is an arithmetic number, because the mean of its divisors is an integer number (683607834).

Almost surely, 2^7161605660 is an apocalyptic number.

It is an amenable number.

7161605660 is an abundant number, since it is smaller than the sum of its proper divisors (9244982356).

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

7161605660 is a wasteful number, since it uses less digits than its factorization.

7161605660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32552773 (or 32552771 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 7161605660 is about 84626.2705074494. The cubic root of 7161605660 is about 1927.5403048674.

The spelling of 7161605660 in words is "seven billion, one hundred sixty-one million, six hundred five thousand, six hundred sixty".