30205235654 has 32 divisors (see below), whose sum is σ = 50403378816. Its totient is φ = 13461016320.

The previous prime is 30205235653. The next prime is 30205235659. The reversal of 30205235654 is 45653250203.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205235653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162197 + ... + 294479.

It is an arithmetic number, because the mean of its divisors is an integer number (1575105588).

Almost surely, 2^30205235654 is an apocalyptic number.

30205235654 is a deficient number, since it is larger than the sum of its proper divisors (20198143162).

30205235654 is a wasteful number, since it uses less digits than its factorization.

30205235654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132500.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 30205235654 its reverse (45653250203), we get a palindrome (75858485857).

The spelling of 30205235654 in words is "thirty billion, two hundred five million, two hundred thirty-five thousand, six hundred fifty-four".