65400706785 has 16 divisors (see below), whose sum is σ = 104975455104. Its totient is φ = 34768935552.

The previous prime is 65400706769. The next prime is 65400706799. The reversal of 65400706785 is 58760700456.

It is not a de Polignac number, because 65400706785 - 2⁴ = 65400706769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6960237 + ... + 6969626.

It is an arithmetic number, because the mean of its divisors is an integer number (6560965944).

Almost surely, 2^65400706785 is an apocalyptic number.

It is an amenable number.

65400706785 is a deficient number, since it is larger than the sum of its proper divisors (39574748319).

65400706785 is a wasteful number, since it uses less digits than its factorization.

65400706785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13930184.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 65400706785 in words is "sixty-five billion, four hundred million, seven hundred six thousand, seven hundred eighty-five".