265383216000 has 1536 divisors, whose sum is σ = 1158393600000. Its totient is φ = 60354201600.

The previous prime is 265383215969. The next prime is 265383216073. The reversal of 265383216000 is 612383562.

It is a happy number.

265383216000 is a `hidden beast` number, since 2 + 65 + 383 + 216 + 0 + 0 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1333583901 + ... + 1333584099.

It is an arithmetic number, because the mean of its divisors is an integer number (754162500).

Almost surely, 2^265383216000 is an apocalyptic number.

265383216000 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 265383216000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579196800000).

265383216000 is an abundant number, since it is smaller than the sum of its proper divisors (893010384000).

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

265383216000 is an frugal number, since it uses more digits than its factorization.

265383216000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 265383216000 its reverse (612383562), we get a palindrome (265995599562).

The spelling of 265383216000 in words is "two hundred sixty-five billion, three hundred eighty-three million, two hundred sixteen thousand".