61082660 has 24 divisors (see below), whose sum is σ = 128438520. Its totient is φ = 24401664.

The previous prime is 61082647. The next prime is 61082669. The reversal of 61082660 is 6628016.

It can be written as a sum of positive squares in 4 ways, for example, as 9012004 + 52070656 = 3002^2 + 7216^2 .

It is not an unprimeable number, because it can be changed into a prime (61082669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19952 + ... + 22808.

It is an arithmetic number, because the mean of its divisors is an integer number (5351605).

Almost surely, 2^61082660 is an apocalyptic number.

It is an amenable number.

61082660 is an abundant number, since it is smaller than the sum of its proper divisors (67355860).

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

61082660 is a wasteful number, since it uses less digits than its factorization.

61082660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935 (or 3933 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 61082660 is about 7815.5396486743. The cubic root of 61082660 is about 393.8274472668.

The spelling of 61082660 in words is "sixty-one million, eighty-two thousand, six hundred sixty".