206337321670157 has 8 divisors (see below), whose sum is σ = 207420062971800. Its totient is φ = 205257389037120.

The previous prime is 206337321670147. The next prime is 206337321670201. The reversal of 206337321670157 is 751076123733602.

206337321670157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2469583963081 + 203867737707076 = 1571491^2 + 14278226^2 .

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 206337321670157 - 2⁸ = 206337321669901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206337321670099 and 206337321670108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206337321670147) 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, 702019838 + ... + 702313695.

It is an arithmetic number, because the mean of its divisors is an integer number (25927507871475).

Almost surely, 2^{206337321670157} is an apocalyptic number.

It is an amenable number.

206337321670157 is a deficient number, since it is larger than the sum of its proper divisors (1082741301643).

206337321670157 is a wasteful number, since it uses less digits than its factorization.

206337321670157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404334303.

The product of its (nonzero) digits is 6667920, while the sum is 53.

The spelling of 206337321670157 in words is "two hundred six trillion, three hundred thirty-seven billion, three hundred twenty-one million, six hundred seventy thousand, one hundred fifty-seven".