205712153201 has 4 divisors (see below), whose sum is σ = 205735836900. Its totient is φ = 205688469504.

The previous prime is 205712153183. The next prime is 205712153261. The reversal of 205712153201 is 102351217502.

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 188772870400 + 16939282801 = 434480^2 + 130151^2 .

It is a cyclic number.

It is not a de Polignac number, because 205712153201 - 2⁶ = 205712153137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205712153261) 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, 11828816 + ... + 11846193.

It is an arithmetic number, because the mean of its divisors is an integer number (51433959225).

Almost surely, 2^205712153201 is an apocalyptic number.

It is an amenable number.

205712153201 is a deficient number, since it is larger than the sum of its proper divisors (23683699).

205712153201 is an equidigital number, since it uses as much as digits as its factorization.

205712153201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23683698.

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 205712153201 in words is "two hundred five billion, seven hundred twelve million, one hundred fifty-three thousand, two hundred one".