65406204645 has 16 divisors (see below), whose sum is σ = 104653108032. Its totient is φ = 34882248960.

The previous prime is 65406204511. The next prime is 65406204659. The reversal of 65406204645 is 54640260456.

It is not a de Polignac number, because 65406204645 - 2⁹ = 65406204133 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65406204597 and 65406204606.

It is a congruent number.

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, 875565 + ... + 947325.

It is an arithmetic number, because the mean of its divisors is an integer number (6540819252).

Almost surely, 2^65406204645 is an apocalyptic number.

It is an amenable number.

65406204645 is a deficient number, since it is larger than the sum of its proper divisors (39246903387).

65406204645 is a wasteful number, since it uses less digits than its factorization.

65406204645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132532.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 65406204645 in words is "sixty-five billion, four hundred six million, two hundred four thousand, six hundred forty-five".