190255565000 has 80 divisors (see below), whose sum is σ = 446517553020. Its totient is φ = 75974400000.

The previous prime is 190255564999. The next prime is 190255565011. The reversal of 190255565000 is 565552091.

It can be written as a sum of positive squares in 10 ways, for example, as 2060978404 + 188194586596 = 45398^2 + 433814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2973344 + ... + 3036656.

Almost surely, 2^190255565000 is an apocalyptic number.

190255565000 is a gapful number since it is divisible by the number (10) 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 190255565000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223258776510).

190255565000 is an abundant number, since it is smaller than the sum of its proper divisors (256261988020).

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

190255565000 is an equidigital number, since it uses as much as digits as its factorization.

190255565000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63940 (or 63921 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 190255565000 in words is "one hundred ninety billion, two hundred fifty-five million, five hundred sixty-five thousand".