213195358066 has 16 divisors (see below), whose sum is σ = 321916580064. Its totient is φ = 105890488704.

The previous prime is 213195358063. The next prime is 213195358067. The reversal of 213195358066 is 660853591312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213195358063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489730 + ... + 816226.

It is an arithmetic number, because the mean of its divisors is an integer number (20119786254).

Almost surely, 2^213195358066 is an apocalyptic number.

213195358066 is a deficient number, since it is larger than the sum of its proper divisors (108721221998).

213195358066 is a wasteful number, since it uses less digits than its factorization.

213195358066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328665.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 213195358066 in words is "two hundred thirteen billion, one hundred ninety-five million, three hundred fifty-eight thousand, sixty-six".