3205155052813 has 16 divisors (see below), whose sum is σ = 3734297280000. Its totient is φ = 2694295348992.

The previous prime is 3205155052811. The next prime is 3205155052829. The reversal of 3205155052813 is 3182505515023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3205155052813 - 2¹ = 3205155052811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205155052811) 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, 19367068 + ... + 19531861.

It is an arithmetic number, because the mean of its divisors is an integer number (233393580000).

Almost surely, 2^{3205155052813} is an apocalyptic number.

It is an amenable number.

3205155052813 is a deficient number, since it is larger than the sum of its proper divisors (529142227187).

3205155052813 is a wasteful number, since it uses less digits than its factorization.

3205155052813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38899164.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 3205155052813 in words is "three trillion, two hundred five billion, one hundred fifty-five million, fifty-two thousand, eight hundred thirteen".