206007115057 has 4 divisors (see below), whose sum is σ = 206070485616. Its totient is φ = 205943744500.

The previous prime is 206007115051. The next prime is 206007115099. The reversal of 206007115057 is 750511700602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 206007115057 - 2¹⁵ = 206007082289 is a prime.

It is a super-2 number, since 2×206007115057² (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 (206007115051) 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, 31680403 + ... + 31686904.

It is an arithmetic number, because the mean of its divisors is an integer number (51517621404).

Almost surely, 2^206007115057 is an apocalyptic number.

It is an amenable number.

206007115057 is a deficient number, since it is larger than the sum of its proper divisors (63370559).

206007115057 is an equidigital number, since it uses as much as digits as its factorization.

206007115057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63370558.

The product of its (nonzero) digits is 14700, while the sum is 34.

Adding to 206007115057 its reverse (750511700602), we get a palindrome (956518815659).

The spelling of 206007115057 in words is "two hundred six billion, seven million, one hundred fifteen thousand, fifty-seven".