206164253413 has 8 divisors (see below), whose sum is σ = 211815456632. Its totient is φ = 200517218496.

The previous prime is 206164253411. The next prime is 206164253461. The reversal of 206164253413 is 314352461602.

It can be written as a sum of positive squares in 4 ways, for example, as 53816112289 + 152348141124 = 231983^2 + 390318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206164253413 - 2¹ = 206164253411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206164253411) 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, 941670 + ... + 1139767.

It is an arithmetic number, because the mean of its divisors is an integer number (26476932079).

Almost surely, 2^206164253413 is an apocalyptic number.

It is an amenable number.

206164253413 is a deficient number, since it is larger than the sum of its proper divisors (5651203219).

206164253413 is a wasteful number, since it uses less digits than its factorization.

206164253413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084151.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 206164253413 in words is "two hundred six billion, one hundred sixty-four million, two hundred fifty-three thousand, four hundred thirteen".