65820801764 has 12 divisors (see below), whose sum is σ = 116574191664. Its totient is φ = 32513889864.

The previous prime is 65820801727. The next prime is 65820801791. The reversal of 65820801764 is 46710802856.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99127382 + ... + 99128045.

It is an arithmetic number, because the mean of its divisors is an integer number (9714515972).

Almost surely, 2^65820801764 is an apocalyptic number.

It is an amenable number.

65820801764 is a deficient number, since it is larger than the sum of its proper divisors (50753389900).

65820801764 is a wasteful number, since it uses less digits than its factorization.

65820801764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198255514 (or 198255512 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 65820801764 in words is "sixty-five billion, eight hundred twenty million, eight hundred one thousand, seven hundred sixty-four".