8091060660 has 36 divisors (see below), whose sum is σ = 24542884548. Its totient is φ = 2157616128.

The previous prime is 8091060647. The next prime is 8091060673. The reversal of 8091060660 is 660601908.

It is an interprime number because it is at equal distance from previous prime (8091060647) and next prime (8091060673).

It can be written as a sum of positive squares in 2 ways, for example, as 4299949476 + 3791111184 = 65574^2 + 61572^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22474989 + ... + 22475348.

It is an arithmetic number, because the mean of its divisors is an integer number (681746793).

Almost surely, 2^8091060660 is an apocalyptic number.

It is an amenable number.

8091060660 is an abundant number, since it is smaller than the sum of its proper divisors (16451823888).

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

8091060660 is a wasteful number, since it uses less digits than its factorization.

8091060660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44950352 (or 44950347 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 8091060660 is about 89950.3232901361. The cubic root of 8091060660 is about 2007.5597772140.

The spelling of 8091060660 in words is "eight billion, ninety-one million, sixty thousand, six hundred sixty".