65990791084 has 24 divisors (see below), whose sum is σ = 116125728768. Its totient is φ = 32812122960.

The previous prime is 65990791033. The next prime is 65990791091. The reversal of 65990791084 is 48019709956.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2725359 + ... + 2749465.

It is an arithmetic number, because the mean of its divisors is an integer number (4838572032).

Almost surely, 2^65990791084 is an apocalyptic number.

It is an amenable number.

65990791084 is a deficient number, since it is larger than the sum of its proper divisors (50134937684).

65990791084 is a wasteful number, since it uses less digits than its factorization.

65990791084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27885 (or 27883 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 65990791084 in words is "sixty-five billion, nine hundred ninety million, seven hundred ninety-one thousand, eighty-four".