206054406601 has 4 divisors (see below), whose sum is σ = 208178678932. Its totient is φ = 203930134272.

The previous prime is 206054406587. The next prime is 206054406619. The reversal of 206054406601 is 106604450602.

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 118969806400 + 87084600201 = 344920^2 + 295101^2 .

It is a cyclic number.

It is not a de Polignac number, because 206054406601 - 2⁷ = 206054406473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206054406001) 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, 1062136020 + ... + 1062136213.

It is an arithmetic number, because the mean of its divisors is an integer number (52044669733).

Almost surely, 2^206054406601 is an apocalyptic number.

It is an amenable number.

206054406601 is a deficient number, since it is larger than the sum of its proper divisors (2124272331).

206054406601 is an equidigital number, since it uses as much as digits as its factorization.

206054406601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124272330.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 206054406601 in words is "two hundred six billion, fifty-four million, four hundred six thousand, six hundred one".