260201985 has 8 divisors (see below), whose sum is σ = 416323200. Its totient is φ = 138774384.

The previous prime is 260201971. The next prime is 260202001. The reversal of 260201985 is 589102062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260201985 - 2⁴ = 260201969 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8673385 + ... + 8673414.

It is an arithmetic number, because the mean of its divisors is an integer number (52040400).

Almost surely, 2^260201985 is an apocalyptic number.

It is an amenable number.

260201985 is a deficient number, since it is larger than the sum of its proper divisors (156121215).

260201985 is a wasteful number, since it uses less digits than its factorization.

260201985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17346807.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 260201985 is about 16130.7775696028. Note that the first 3 decimals coincide. The cubic root of 260201985 is about 638.4156653267.

The spelling of 260201985 in words is "two hundred sixty million, two hundred one thousand, nine hundred eighty-five".