206502040653 has 4 divisors (see below), whose sum is σ = 275336054208. Its totient is φ = 137668027100.

The previous prime is 206502040597. The next prime is 206502040687. The reversal of 206502040653 is 356040205602.

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 206502040653 - 2⁹ = 206502040141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206502040753) 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, 34417006773 + ... + 34417006778.

It is an arithmetic number, because the mean of its divisors is an integer number (68834013552).

Almost surely, 2^206502040653 is an apocalyptic number.

It is an amenable number.

206502040653 is a deficient number, since it is larger than the sum of its proper divisors (68834013555).

206502040653 is an equidigital number, since it uses as much as digits as its factorization.

206502040653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68834013554.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 206502040653 in words is "two hundred six billion, five hundred two million, forty thousand, six hundred fifty-three".