207068206057 has 4 divisors (see below), whose sum is σ = 207600515460. Its totient is φ = 206535896656.

The previous prime is 207068206021. The next prime is 207068206069. The reversal of 207068206057 is 750602860702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148757547481 + 58310658576 = 385691^2 + 241476^2 .

It is a cyclic number.

It is not a de Polignac number, because 207068206057 - 2¹⁵ = 207068173289 is a prime.

It is a super-2 number, since 2×207068206057² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207068206357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266154118 + ... + 266154895.

It is an arithmetic number, because the mean of its divisors is an integer number (51900128865).

Almost surely, 2^207068206057 is an apocalyptic number.

It is an amenable number.

207068206057 is a deficient number, since it is larger than the sum of its proper divisors (532309403).

207068206057 is an equidigital number, since it uses as much as digits as its factorization.

207068206057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532309402.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 207068206057 in words is "two hundred seven billion, sixty-eight million, two hundred six thousand, fifty-seven".