882128661 has 16 divisors (see below), whose sum is σ = 1201314240. Its totient is φ = 575569280.

The previous prime is 882128629. The next prime is 882128669. The reversal of 882128661 is 166821288.

It is a cyclic number.

It is not a de Polignac number, because 882128661 - 2⁵ = 882128629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (882128669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60001 + ... + 73241.

It is an arithmetic number, because the mean of its divisors is an integer number (75082140).

Almost surely, 2^882128661 is an apocalyptic number.

It is an amenable number.

882128661 is a deficient number, since it is larger than the sum of its proper divisors (319185579).

882128661 is a wasteful number, since it uses less digits than its factorization.

882128661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716.

The product of its digits is 73728, while the sum is 42.

The square root of 882128661 is about 29700.6508514544. The cubic root of 882128661 is about 959.0560241250.

The spelling of 882128661 in words is "eight hundred eighty-two million, one hundred twenty-eight thousand, six hundred sixty-one".