203869053455 has 16 divisors (see below), whose sum is σ = 246148490304. Its totient is φ = 162092194560.

The previous prime is 203869053419. The next prime is 203869053457. The reversal of 203869053455 is 554350968302.

It is a de Polignac number, because none of the positive numbers 2^k-203869053455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203869053457) 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, 2359670 + ... + 2444540.

It is an arithmetic number, because the mean of its divisors is an integer number (15384280644).

Almost surely, 2^203869053455 is an apocalyptic number.

203869053455 is a deficient number, since it is larger than the sum of its proper divisors (42279436849).

203869053455 is a wasteful number, since it uses less digits than its factorization.

203869053455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87826.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 203869053455 in words is "two hundred three billion, eight hundred sixty-nine million, fifty-three thousand, four hundred fifty-five".