205220412264 has 32 divisors (see below), whose sum is σ = 586344035520. Its totient is φ = 58634403456.

The previous prime is 205220412263. The next prime is 205220412301. The reversal of 205220412264 is 462214022502.

It is a super-2 number, since 2×205220412264² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205220412263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610774869 + ... + 610775204.

It is an arithmetic number, because the mean of its divisors is an integer number (18323251110).

Almost surely, 2^205220412264 is an apocalyptic number.

205220412264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205220412264 is an abundant number, since it is smaller than the sum of its proper divisors (381123623256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205220412264 is a wasteful number, since it uses less digits than its factorization.

205220412264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221550089 (or 1221550085 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 205220412264 its reverse (462214022502), we get a palindrome (667434434766).

The spelling of 205220412264 in words is "two hundred five billion, two hundred twenty million, four hundred twelve thousand, two hundred sixty-four".