203465642105 has 16 divisors (see below), whose sum is σ = 272022153984. Its totient is φ = 144826606080.

The previous prime is 203465642101. The next prime is 203465642119. The reversal of 203465642105 is 501246564302.

It is not a de Polignac number, because 203465642105 - 2² = 203465642101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203465642101) 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, 39352472 + ... + 39357641.

It is an arithmetic number, because the mean of its divisors is an integer number (17001384624).

Almost surely, 2^203465642105 is an apocalyptic number.

It is an amenable number.

203465642105 is a deficient number, since it is larger than the sum of its proper divisors (68556511879).

203465642105 is a wasteful number, since it uses less digits than its factorization.

203465642105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78710176.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 203465642105 in words is "two hundred three billion, four hundred sixty-five million, six hundred forty-two thousand, one hundred five".