260165500 has 192 divisors, whose sum is σ = 697132800. Its totient is φ = 84672000.

The previous prime is 260165431. The next prime is 260165519. The reversal of 260165500 is 5561062.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 6345480 + ... + 6345520.

It is an arithmetic number, because the mean of its divisors is an integer number (3630900).

Almost surely, 2^260165500 is an apocalyptic number.

260165500 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 260165500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348566400).

260165500 is an abundant number, since it is smaller than the sum of its proper divisors (436967300).

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

260165500 is a wasteful number, since it uses less digits than its factorization.

260165500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 260165500 is about 16129.6466173317. The cubic root of 260165500 is about 638.3858248109.

The spelling of 260165500 in words is "two hundred sixty million, one hundred sixty-five thousand, five hundred".