6203135661 has 16 divisors (see below), whose sum is σ = 8811105984. Its totient is φ = 3868280064.

The previous prime is 6203135639. The next prime is 6203135677. The reversal of 6203135661 is 1665313026.

It is not a de Polignac number, because 6203135661 - 2¹⁸ = 6202873517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6203135161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364786 + ... + 381411.

It is an arithmetic number, because the mean of its divisors is an integer number (550694124).

Almost surely, 2^6203135661 is an apocalyptic number.

It is an amenable number.

6203135661 is a deficient number, since it is larger than the sum of its proper divisors (2607970323).

6203135661 is a wasteful number, since it uses less digits than its factorization.

6203135661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746380.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 6203135661 is about 78759.9876904510. The cubic root of 6203135661 is about 1837.4002017528.

Adding to 6203135661 its reverse (1665313026), we get a palindrome (7868448687).

The spelling of 6203135661 in words is "six billion, two hundred three million, one hundred thirty-five thousand, six hundred sixty-one".