261164846 has 16 divisors (see below), whose sum is σ = 415633680. Its totient is φ = 122651520.

The previous prime is 261164831. The next prime is 261164887. The reversal of 261164846 is 648461162.

261164846 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 9761 + ... + 24851.

It is an arithmetic number, because the mean of its divisors is an integer number (25977105).

Almost surely, 2^261164846 is an apocalyptic number.

261164846 is a deficient number, since it is larger than the sum of its proper divisors (154468834).

261164846 is a wasteful number, since it uses less digits than its factorization.

261164846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15619.

The product of its digits is 55296, while the sum is 38.

The square root of 261164846 is about 16160.5954717021. The cubic root of 261164846 is about 639.2021682615.

The spelling of 261164846 in words is "two hundred sixty-one million, one hundred sixty-four thousand, eight hundred forty-six".