65485970577 has 6 divisors (see below), whose sum is σ = 94590846402. Its totient is φ = 43657313712.

The previous prime is 65485970567. The next prime is 65485970587. The reversal of 65485970577 is 77507958456.

65485970577 is a `hidden beast` number, since 6 + 5 + 4 + 8 + 59 + 7 + 0 + 577 = 666.

It is an interprime number because it is at equal distance from previous prime (65485970567) and next prime (65485970587).

It can be written as a sum of positive squares in only one way, i.e., 41259359376 + 24226611201 = 203124^2 + 155649^2 .

It is not a de Polignac number, because 65485970577 - 2⁷ = 65485970449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65485970567) 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 5 ways as a sum of consecutive naturals, for example, 3638109468 + ... + 3638109485.

It is an arithmetic number, because the mean of its divisors is an integer number (15765141067).

Almost surely, 2^65485970577 is an apocalyptic number.

It is an amenable number.

65485970577 is a deficient number, since it is larger than the sum of its proper divisors (29104875825).

65485970577 is a wasteful number, since it uses less digits than its factorization.

65485970577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276218959 (or 7276218956 counting only the distinct ones).

The product of its (nonzero) digits is 74088000, while the sum is 63.

The spelling of 65485970577 in words is "sixty-five billion, four hundred eighty-five million, nine hundred seventy thousand, five hundred seventy-seven".