261676120 has 16 divisors (see below), whose sum is σ = 588771360. Its totient is φ = 104670432.

The previous prime is 261676111. The next prime is 261676123. The reversal of 261676120 is 21676162.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261676123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3270912 + ... + 3270991.

It is an arithmetic number, because the mean of its divisors is an integer number (36798210).

Almost surely, 2^261676120 is an apocalyptic number.

261676120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261676120 is an abundant number, since it is smaller than the sum of its proper divisors (327095240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261676120 is a wasteful number, since it uses less digits than its factorization.

261676120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541914 (or 6541910 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 261676120 is about 16176.4062758080. The cubic root of 261676120 is about 639.6190115259.

The spelling of 261676120 in words is "two hundred sixty-one million, six hundred seventy-six thousand, one hundred twenty".