265090129920 has 1344 divisors, whose sum is σ = 1188131857920. Its totient is φ = 54889021440.

The previous prime is 265090129853. The next prime is 265090129933. The reversal of 265090129920 is 29921090562.

265090129920 is a `hidden beast` number, since 26 + 509 + 0 + 12 + 99 + 20 = 666.

265090129920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 936714099 + ... + 936714381.

It is an arithmetic number, because the mean of its divisors is an integer number (884026680).

Almost surely, 2^265090129920 is an apocalyptic number.

265090129920 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 265090129920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594065928960).

265090129920 is an abundant number, since it is smaller than the sum of its proper divisors (923041728000).

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

265090129920 is a wasteful number, since it uses less digits than its factorization.

265090129920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 265090129920 in words is "two hundred sixty-five billion, ninety million, one hundred twenty-nine thousand, nine hundred twenty".