260333661 has 16 divisors (see below), whose sum is σ = 400629888. Its totient is φ = 147288000.

The previous prime is 260333639. The next prime is 260333663. The reversal of 260333661 is 166333062.

It is not a de Polignac number, because 260333661 - 2⁷ = 260333533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260333663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59250 + ... + 63491.

It is an arithmetic number, because the mean of its divisors is an integer number (25039368).

Almost surely, 2^260333661 is an apocalyptic number.

260333661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

260333661 is a deficient number, since it is larger than the sum of its proper divisors (140296227).

260333661 is a wasteful number, since it uses less digits than its factorization.

260333661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122852.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 260333661 is about 16134.8585677099. The cubic root of 260333661 is about 638.5233378910.

The spelling of 260333661 in words is "two hundred sixty million, three hundred thirty-three thousand, six hundred sixty-one".