3656634066 has 24 divisors (see below), whose sum is σ = 7933633344. Its totient is φ = 1217197080.

The previous prime is 3656634061. The next prime is 3656634073. The reversal of 3656634066 is 6604366563.

It is a happy number.

3656634066 is a `hidden beast` number, since 3 + 6 + 5 + 6 + 634 + 0 + 6 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (3656634061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126630 + ... + 152801.

It is an arithmetic number, because the mean of its divisors is an integer number (330568056).

Almost surely, 2^3656634066 is an apocalyptic number.

3656634066 is an abundant number, since it is smaller than the sum of its proper divisors (4276999278).

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

3656634066 is a wasteful number, since it uses less digits than its factorization.

3656634066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280166 (or 280163 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 45.

The square root of 3656634066 is about 60470.1088638015. The cubic root of 3656634066 is about 1540.6139770868.

The spelling of 3656634066 in words is "three billion, six hundred fifty-six million, six hundred thirty-four thousand, sixty-six".