65245264257 has 16 divisors (see below), whose sum is σ = 92625560640. Its totient is φ = 40709494272.

The previous prime is 65245264229. The next prime is 65245264303. The reversal of 65245264257 is 75246254256.

It is not a de Polignac number, because 65245264257 - 2¹⁵ = 65245231489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65245264657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3564388 + ... + 3582645.

It is an arithmetic number, because the mean of its divisors is an integer number (5789097540).

Almost surely, 2^65245264257 is an apocalyptic number.

It is an amenable number.

65245264257 is a deficient number, since it is larger than the sum of its proper divisors (27380296383).

65245264257 is a wasteful number, since it uses less digits than its factorization.

65245264257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7147232.

The product of its digits is 4032000, while the sum is 48.

The spelling of 65245264257 in words is "sixty-five billion, two hundred forty-five million, two hundred sixty-four thousand, two hundred fifty-seven".