265794001920 has 264 divisors, whose sum is σ = 936077051520. Its totient is φ = 69715722240.

The previous prime is 265794001871. The next prime is 265794001927. The reversal of 265794001920 is 29100497562.

265794001920 is a `hidden beast` number, since 2 + 6 + 57 + 9 + 400 + 192 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265794001927) 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 23 ways as a sum of consecutive naturals, for example, 2763601 + ... + 2858159.

Almost surely, 2^265794001920 is an apocalyptic number.

265794001920 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 265794001920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468038525760).

265794001920 is an abundant number, since it is smaller than the sum of its proper divisors (670283049600).

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

265794001920 is a wasteful number, since it uses less digits than its factorization.

265794001920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94651 (or 94630 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 265794001920 in words is "two hundred sixty-five billion, seven hundred ninety-four million, one thousand, nine hundred twenty".