205707263080 has 128 divisors (see below), whose sum is σ = 541061700480. Its totient is φ = 69554053120.

The previous prime is 205707263059. The next prime is 205707263117. The reversal of 205707263080 is 80362707502.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455172 + ... + 786508.

It is an arithmetic number, because the mean of its divisors is an integer number (4227044535).

Almost surely, 2^205707263080 is an apocalyptic number.

205707263080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205707263080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270530850240).

205707263080 is an abundant number, since it is smaller than the sum of its proper divisors (335354437400).

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

205707263080 is a wasteful number, since it uses less digits than its factorization.

205707263080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331459 (or 331455 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 205707263080 in words is "two hundred five billion, seven hundred seven million, two hundred sixty-three thousand, eighty".