265164480 has 252 divisors, whose sum is σ = 1061526960. Its totient is φ = 60576768.

The previous prime is 265164469. The next prime is 265164503. The reversal of 265164480 is 84461562.

265164480 is a `hidden beast` number, since 2 + 6 + 5 + 1 + 644 + 8 + 0 = 666.

265164480 is digitally balanced in base 2, 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 (252).

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 35 ways as a sum of consecutive naturals, for example, 140181 + ... + 142059.

Almost surely, 2^265164480 is an apocalyptic number.

265164480 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 265164480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530763480).

265164480 is an abundant number, since it is smaller than the sum of its proper divisors (796362480).

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

265164480 is a wasteful number, since it uses less digits than its factorization.

265164480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 265164480 is about 16283.8717754716. The cubic root of 265164480 is about 642.4486920728.

The spelling of 265164480 in words is "two hundred sixty-five million, one hundred sixty-four thousand, four hundred eighty".