205606000106057 has 8 divisors (see below), whose sum is σ = 214770517766784. Its totient is φ = 196460242974688.

The previous prime is 205606000105999. The next prime is 205606000106069. The reversal of 205606000106057 is 750601000606502.

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 205606000106057 - 2⁸ = 205606000105801 is a prime.

It is a super-2 number, since 2×205606000106057² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205606000106057.

It is not an unprimeable number, because it can be changed into a prime (205606006106057) 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, 4690109933 + ... + 4690153770.

It is an arithmetic number, because the mean of its divisors is an integer number (26846314720848).

Almost surely, 2^{205606000106057} is an apocalyptic number.

It is an amenable number.

205606000106057 is a deficient number, since it is larger than the sum of its proper divisors (9164517660727).

205606000106057 is an equidigital number, since it uses as much as digits as its factorization.

205606000106057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380264679.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 205606000106057 in words is "two hundred five trillion, six hundred six billion, one hundred six thousand, fifty-seven".