265090896720 has 480 divisors, whose sum is σ = 1052757119232. Its totient is φ = 61413728256.

The previous prime is 265090896659. The next prime is 265090896727. The reversal of 265090896720 is 27698090562.

265090896720 is a `hidden beast` number, since 26 + 509 + 0 + 8 + 96 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265090896727) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4265389 + ... + 4327091.

Almost surely, 2^265090896720 is an apocalyptic number.

265090896720 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 265090896720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526378559616).

265090896720 is an abundant number, since it is smaller than the sum of its proper divisors (787666222512).

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

265090896720 is a wasteful number, since it uses less digits than its factorization.

265090896720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61761 (or 61743 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 265090896720 in words is "two hundred sixty-five billion, ninety million, eight hundred ninety-six thousand, seven hundred twenty".