3695578660 has 72 divisors (see below), whose sum is σ = 8672763960. Its totient is φ = 1318007808.

The previous prime is 3695578657. The next prime is 3695578739. The reversal of 3695578660 is 668755963.

It can be written as a sum of positive squares in 4 ways, for example, as 549714916 + 3145863744 = 23446^2 + 56088^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107686 + ... + 137794.

It is an arithmetic number, because the mean of its divisors is an integer number (120455055).

Almost surely, 2^3695578660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3695578660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4336381980).

3695578660 is an abundant number, since it is smaller than the sum of its proper divisors (4977185300).

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

3695578660 is a wasteful number, since it uses less digits than its factorization.

3695578660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30173 (or 30152 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 55.

The square root of 3695578660 is about 60791.2712484284. The cubic root of 3695578660 is about 1546.0640561614.

The spelling of 3695578660 in words is "three billion, six hundred ninety-five million, five hundred seventy-eight thousand, six hundred sixty".