201686700346 has 4 divisors (see below), whose sum is σ = 302530050522. Its totient is φ = 100843350172.

The previous prime is 201686700343. The next prime is 201686700349. The reversal of 201686700346 is 643007686102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201686700343) and next prime (201686700349).

It can be written as a sum of positive squares in only one way, i.e., 153401472225 + 48285228121 = 391665^2 + 219739^2 .

It is not an unprimeable number, because it can be changed into a prime (201686700343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50421675085 + ... + 50421675088.

Almost surely, 2^201686700346 is an apocalyptic number.

201686700346 is a deficient number, since it is larger than the sum of its proper divisors (100843350176).

201686700346 is a wasteful number, since it uses less digits than its factorization.

201686700346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100843350175.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 201686700346 in words is "two hundred one billion, six hundred eighty-six million, seven hundred thousand, three hundred forty-six".