260664145 has 16 divisors (see below), whose sum is σ = 378511488. Its totient is φ = 168226560.

The previous prime is 260664139. The next prime is 260664161. The reversal of 260664145 is 541466062.

It is not a de Polignac number, because 260664145 - 2³ = 260664137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260664145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218451 + ... + 219640.

It is an arithmetic number, because the mean of its divisors is an integer number (23656968).

Almost surely, 2^260664145 is an apocalyptic number.

It is an amenable number.

260664145 is a deficient number, since it is larger than the sum of its proper divisors (117847343).

260664145 is a wasteful number, since it uses less digits than its factorization.

260664145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438120.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 260664145 is about 16145.0966240528. The cubic root of 260664145 is about 638.7934175958.

The spelling of 260664145 in words is "two hundred sixty million, six hundred sixty-four thousand, one hundred forty-five".