82010661 has 8 divisors (see below), whose sum is σ = 109400544. Its totient is φ = 54647280.

The previous prime is 82010659. The next prime is 82010671. The reversal of 82010661 is 16601028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82010661 - 2¹ = 82010659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82010671) 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, 2326 + ... + 13016.

It is an arithmetic number, because the mean of its divisors is an integer number (13675068).

Almost surely, 2^82010661 is an apocalyptic number.

It is an amenable number.

82010661 is a deficient number, since it is larger than the sum of its proper divisors (27389883).

82010661 is a wasteful number, since it uses less digits than its factorization.

82010661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13251.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 82010661 is about 9055.9737742553. The cubic root of 82010661 is about 434.4669756135.

Adding to 82010661 its reverse (16601028), we get a palindrome (98611689).

The spelling of 82010661 in words is "eighty-two million, ten thousand, six hundred sixty-one".