2005011605253 has 8 divisors (see below), whose sum is σ = 2675863720768. Its totient is φ = 1335416946624.

The previous prime is 2005011605251. The next prime is 2005011605263. The reversal of 2005011605253 is 3525061105002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2005011605253 - 2¹ = 2005011605251 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2005011605253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005011605251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314360500 + ... + 314366877.

It is an arithmetic number, because the mean of its divisors is an integer number (334482965096).

Almost surely, 2^{2005011605253} is an apocalyptic number.

It is an amenable number.

2005011605253 is a deficient number, since it is larger than the sum of its proper divisors (670852115515).

2005011605253 is a wasteful number, since it uses less digits than its factorization.

2005011605253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628728443.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 2005011605253 in words is "two trillion, five billion, eleven million, six hundred five thousand, two hundred fifty-three".