205655182586051 has 8 divisors (see below), whose sum is σ = 226529274376704. Its totient is φ = 185144118478920.

The previous prime is 205655182586041. The next prime is 205655182586089. The reversal of 205655182586051 is 150685281556502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205655182586051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205655182586041) 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, 90756919691 + ... + 90756921956.

It is an arithmetic number, because the mean of its divisors is an integer number (28316159297088).

Almost surely, 2^{205655182586051} is an apocalyptic number.

205655182586051 is a deficient number, since it is larger than the sum of its proper divisors (20874091790653).

205655182586051 is a wasteful number, since it uses less digits than its factorization.

205655182586051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181513841761.

The product of its (nonzero) digits is 28800000, while the sum is 59.

The spelling of 205655182586051 in words is "two hundred five trillion, six hundred fifty-five billion, one hundred eighty-two million, five hundred eighty-six thousand, fifty-one".