204232555511 has 24 divisors (see below), whose sum is σ = 217985516784. Its totient is φ = 191298931200.

The previous prime is 204232555451. The next prime is 204232555523. The reversal of 204232555511 is 115555232402.

It is a happy number.

It is not a de Polignac number, because 204232555511 - 2¹⁴ = 204232539127 is a prime.

It is a super-2 number, since 2×204232555511² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204232555531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45554876 + ... + 45559358.

It is an arithmetic number, because the mean of its divisors is an integer number (9082729866).

Almost surely, 2^204232555511 is an apocalyptic number.

204232555511 is a deficient number, since it is larger than the sum of its proper divisors (13752961273).

204232555511 is a wasteful number, since it uses less digits than its factorization.

204232555511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919 (or 5900 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 204232555511 its reverse (115555232402), we get a palindrome (319787787913).

The spelling of 204232555511 in words is "two hundred four billion, two hundred thirty-two million, five hundred fifty-five thousand, five hundred eleven".