3561366204 has 84 divisors (see below), whose sum is σ = 10193886360. Its totient is φ = 1079192160.

The previous prime is 3561366191. The next prime is 3561366209. The reversal of 3561366204 is 4026631653.

3561366204 is a `hidden beast` number, since 3 + 561 + 36 + 62 + 0 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561366209) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 23439 + ... + 87590.

It is an arithmetic number, because the mean of its divisors is an integer number (121355790).

Almost surely, 2^3561366204 is an apocalyptic number.

It is an amenable number.

3561366204 is an abundant number, since it is smaller than the sum of its proper divisors (6632520156).

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

3561366204 is a wasteful number, since it uses less digits than its factorization.

3561366204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111062 (or 111045 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 3561366204 is about 59677.1832780335. The cubic root of 3561366204 is about 1527.1166457263.

Adding to 3561366204 its reverse (4026631653), we get a palindrome (7587997857).

The spelling of 3561366204 in words is "three billion, five hundred sixty-one million, three hundred sixty-six thousand, two hundred four".