3655642206 has 16 divisors (see below), whose sum is σ = 7399373184. Its totient is φ = 1203865944.

The previous prime is 3655642181. The next prime is 3655642213. The reversal of 3655642206 is 6022465563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3669826 + ... + 3670821.

It is an arithmetic number, because the mean of its divisors is an integer number (462460824).

Almost surely, 2^3655642206 is an apocalyptic number.

3655642206 is an abundant number, since it is smaller than the sum of its proper divisors (3743730978).

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

3655642206 is a wasteful number, since it uses less digits than its factorization.

3655642206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340735.

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 3655642206 is about 60461.9070655235. The cubic root of 3655642206 is about 1540.4746675892.

The spelling of 3655642206 in words is "three billion, six hundred fifty-five million, six hundred forty-two thousand, two hundred six".