260601645 has 16 divisors (see below), whose sum is σ = 422242560. Its totient is φ = 137227584.

The previous prime is 260601641. The next prime is 260601683. The reversal of 260601645 is 546106062.

It is not a de Polignac number, because 260601645 - 2² = 260601641 is a prime.

It is a super-3 number, since 3×260601645³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260601641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108774 + ... + 111143.

It is an arithmetic number, because the mean of its divisors is an integer number (26390160).

Almost surely, 2^260601645 is an apocalyptic number.

It is an amenable number.

260601645 is a deficient number, since it is larger than the sum of its proper divisors (161640915).

260601645 is a wasteful number, since it uses less digits than its factorization.

260601645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220004.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 260601645 is about 16143.1609358267. The cubic root of 260601645 is about 638.7423585597.

The spelling of 260601645 in words is "two hundred sixty million, six hundred one thousand, six hundred forty-five".