3561158660 has 12 divisors (see below), whose sum is σ = 7478433228. Its totient is φ = 1424463456.

The previous prime is 3561158621. The next prime is 3561158677. The reversal of 3561158660 is 668511653.

It can be written as a sum of positive squares in 2 ways, for example, as 360088576 + 3201070084 = 18976^2 + 56578^2 .

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, 89028947 + ... + 89028986.

It is an arithmetic number, because the mean of its divisors is an integer number (623202769).

Almost surely, 2^3561158660 is an apocalyptic number.

It is an amenable number.

3561158660 is an abundant number, since it is smaller than the sum of its proper divisors (3917274568).

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

3561158660 is a wasteful number, since it uses less digits than its factorization.

3561158660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178057942 (or 178057940 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 3561158660 is about 59675.4443636577. Note that the first 3 decimals coincide. The cubic root of 3561158660 is about 1527.0869801396.

The spelling of 3561158660 in words is "three billion, five hundred sixty-one million, one hundred fifty-eight thousand, six hundred sixty".