250117066320 has 160 divisors (see below), whose sum is σ = 850102732800. Its totient is φ = 60329617920.

The previous prime is 250117066301. The next prime is 250117066327. The reversal of 250117066320 is 23660711052.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250117066327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287317 + ... + 763403.

It is an arithmetic number, because the mean of its divisors is an integer number (5313142080).

Almost surely, 2^250117066320 is an apocalyptic number.

250117066320 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 250117066320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425051366400).

250117066320 is an abundant number, since it is smaller than the sum of its proper divisors (599985666480).

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

250117066320 is a wasteful number, since it uses less digits than its factorization.

250117066320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476313 (or 476307 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 250117066320 its reverse (23660711052), we get a palindrome (273777777372).

The spelling of 250117066320 in words is "two hundred fifty billion, one hundred seventeen million, sixty-six thousand, three hundred twenty".