65585772087 has 32 divisors (see below), whose sum is σ = 96484608000. Its totient is φ = 39297498720.

The previous prime is 65585772071. The next prime is 65585772151. The reversal of 65585772087 is 78027758556.

It is not a de Polignac number, because 65585772087 - 2⁴ = 65585772071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65585772087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65585772067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1743358 + ... + 1780580.

It is an arithmetic number, because the mean of its divisors is an integer number (3015144000).

Almost surely, 2^65585772087 is an apocalyptic number.

65585772087 is a deficient number, since it is larger than the sum of its proper divisors (30898835913).

65585772087 is a wasteful number, since it uses less digits than its factorization.

65585772087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37843.

The product of its (nonzero) digits is 32928000, while the sum is 60.

The spelling of 65585772087 in words is "sixty-five billion, five hundred eighty-five million, seven hundred seventy-two thousand, eighty-seven".