7666740560 has 20 divisors (see below), whose sum is σ = 17825171988. Its totient is φ = 3066696192.

The previous prime is 7666740553. The next prime is 7666740577. The reversal of 7666740560 is 650476667.

It can be written as a sum of positive squares in 2 ways, for example, as 3372821776 + 4293918784 = 58076^2 + 65528^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×7666740560² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47917049 + ... + 47917208.

Almost surely, 2^7666740560 is an apocalyptic number.

It is an amenable number.

7666740560 is an abundant number, since it is smaller than the sum of its proper divisors (10158431428).

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

7666740560 is a wasteful number, since it uses less digits than its factorization.

7666740560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95834270 (or 95834264 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

The square root of 7666740560 is about 87559.9255367431. The cubic root of 7666740560 is about 1971.8335682083.

The spelling of 7666740560 in words is "seven billion, six hundred sixty-six million, seven hundred forty thousand, five hundred sixty".