201634929065 has 4 divisors (see below), whose sum is σ = 241961914884. Its totient is φ = 161307943248.

The previous prime is 201634929007. The next prime is 201634929079. The reversal of 201634929065 is 560929436102.

It is a happy number.

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 38360747881 + 163274181184 = 195859^2 + 404072^2 .

It is a cyclic number.

It is not a de Polignac number, because 201634929065 - 2¹⁴ = 201634912681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20163492902 + ... + 20163492911.

It is an arithmetic number, because the mean of its divisors is an integer number (60490478721).

Almost surely, 2^201634929065 is an apocalyptic number.

It is an amenable number.

201634929065 is a deficient number, since it is larger than the sum of its proper divisors (40326985819).

201634929065 is an equidigital number, since it uses as much as digits as its factorization.

201634929065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40326985818.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 201634929065 in words is "two hundred one billion, six hundred thirty-four million, nine hundred twenty-nine thousand, sixty-five".