205313362620 has 48 divisors (see below), whose sum is σ = 599872089600. Its totient is φ = 52369784896.

The previous prime is 205313362547. The next prime is 205313362621. The reversal of 205313362620 is 26263313502.

It is a super-2 number, since 2×205313362620² (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 (205313362621) 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, 74387520 + ... + 74390279.

It is an arithmetic number, because the mean of its divisors is an integer number (12497335200).

Almost surely, 2^205313362620 is an apocalyptic number.

205313362620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205313362620 is an abundant number, since it is smaller than the sum of its proper divisors (394558726980).

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

205313362620 is a wasteful number, since it uses less digits than its factorization.

205313362620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148777834 (or 148777832 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The spelling of 205313362620 in words is "two hundred five billion, three hundred thirteen million, three hundred sixty-two thousand, six hundred twenty".