1611302430205 has 16 divisors (see below), whose sum is σ = 2082331407744. Its totient is φ = 1189866081600.

The previous prime is 1611302430119. The next prime is 1611302430209. The reversal of 1611302430205 is 5020342031161.

It is not a de Polignac number, because 1611302430205 - 2²⁵ = 1611268875773 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 (1611302430209) 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, 5008312 + ... + 5320318.

It is an arithmetic number, because the mean of its divisors is an integer number (130145712984).

Almost surely, 2^{1611302430205} is an apocalyptic number.

It is an amenable number.

1611302430205 is a deficient number, since it is larger than the sum of its proper divisors (471028977539).

1611302430205 is a wasteful number, since it uses less digits than its factorization.

1611302430205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391476.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1611302430205 its reverse (5020342031161), we get a palindrome (6631644461366).

The spelling of 1611302430205 in words is "one trillion, six hundred eleven billion, three hundred two million, four hundred thirty thousand, two hundred five".