205306022636 has 48 divisors (see below), whose sum is σ = 422213329440. Its totient is φ = 86118789120.

The previous prime is 205306022633. The next prime is 205306022639. The reversal of 205306022636 is 636220603502.

It is an interprime number because it is at equal distance from previous prime (205306022633) and next prime (205306022639).

It is a super-2 number, since 2×205306022636² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205306022596 and 205306022605.

It is not an unprimeable number, because it can be changed into a prime (205306022633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124620 + ... + 2219148.

It is an arithmetic number, because the mean of its divisors is an integer number (8796111030).

Almost surely, 2^205306022636 is an apocalyptic number.

205306022636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

205306022636 is an abundant number, since it is smaller than the sum of its proper divisors (216907306804).

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

205306022636 is a wasteful number, since it uses less digits than its factorization.

205306022636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98354 (or 98352 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 205306022636 in words is "two hundred five billion, three hundred six million, twenty-two thousand, six hundred thirty-six".