205032433155 has 32 divisors (see below), whose sum is σ = 357916416768. Its totient is φ = 99398102400.

The previous prime is 205032433121. The next prime is 205032433159. The reversal of 205032433155 is 551334230502.

It is not a de Polignac number, because 205032433155 - 2²¹ = 205030336003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (205032433159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1447192 + ... + 1582538.

It is an arithmetic number, because the mean of its divisors is an integer number (11184888024).

Almost surely, 2^205032433155 is an apocalyptic number.

205032433155 is a deficient number, since it is larger than the sum of its proper divisors (152883983613).

205032433155 is a wasteful number, since it uses less digits than its factorization.

205032433155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144547.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 205032433155 its reverse (551334230502), we get a palindrome (756366663657).

The spelling of 205032433155 in words is "two hundred five billion, thirty-two million, four hundred thirty-three thousand, one hundred fifty-five".