87065666633 has 16 divisors (see below), whose sum is σ = 100914128640. Its totient is φ = 74283973200.

The previous prime is 87065666629. The next prime is 87065666657. The reversal of 87065666633 is 33666656078.

It is not a de Polignac number, because 87065666633 - 2² = 87065666629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87065666693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1924283 + ... + 1969008.

It is an arithmetic number, because the mean of its divisors is an integer number (6307133040).

Almost surely, 2^87065666633 is an apocalyptic number.

It is an amenable number.

87065666633 is a deficient number, since it is larger than the sum of its proper divisors (13848462007).

87065666633 is a wasteful number, since it uses less digits than its factorization.

87065666633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893428.

The product of its (nonzero) digits is 19595520, while the sum is 56.

The spelling of 87065666633 in words is "eighty-seven billion, sixty-five million, six hundred sixty-six thousand, six hundred thirty-three".