163213120136206 has 32 divisors (see below), whose sum is σ = 298214322527232. Its totient is φ = 65397877718400.

The previous prime is 163213120136147. The next prime is 163213120136233. The reversal of 163213120136206 is 602631021312361.

It is a super-2 number, since 2×163213120136206² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2270723706 + ... + 2270795581.

It is an arithmetic number, because the mean of its divisors is an integer number (9319197578976).

Almost surely, 2^{163213120136206} is an apocalyptic number.

163213120136206 is a deficient number, since it is larger than the sum of its proper divisors (135001202391026).

163213120136206 is a wasteful number, since it uses less digits than its factorization.

163213120136206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541519464.

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 163213120136206 its reverse (602631021312361), we get a palindrome (765844141448567).

The spelling of 163213120136206 in words is "one hundred sixty-three trillion, two hundred thirteen billion, one hundred twenty million, one hundred thirty-six thousand, two hundred six".