206064140055 has 16 divisors (see below), whose sum is σ = 329727661440. Its totient is φ = 109892528928.

The previous prime is 206064140053. The next prime is 206064140059. The reversal of 206064140055 is 550041460602.

It is not a de Polignac number, because 206064140055 - 2¹ = 206064140053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206064139998 and 206064140025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206064140053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314857 + ... + 715026.

It is an arithmetic number, because the mean of its divisors is an integer number (20607978840).

Almost surely, 2^206064140055 is an apocalyptic number.

206064140055 is a deficient number, since it is larger than the sum of its proper divisors (123663521385).

206064140055 is a wasteful number, since it uses less digits than its factorization.

206064140055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043230.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 206064140055 in words is "two hundred six billion, sixty-four million, one hundred forty thousand, fifty-five".