65276507064 has 32 divisors (see below), whose sum is σ = 163242954000. Its totient is φ = 21751944192.

The previous prime is 65276507063. The next prime is 65276507081. The reversal of 65276507064 is 46070567256.

It is a super-2 number, since 2×65276507064² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65276507063) 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 7 ways as a sum of consecutive naturals, for example, 353079 + ... + 505190.

Almost surely, 2^65276507064 is an apocalyptic number.

It is an amenable number.

65276507064 is an abundant number, since it is smaller than the sum of its proper divisors (97966446936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65276507064 is a wasteful number, since it uses less digits than its factorization.

65276507064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861447 (or 861443 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 65276507064 in words is "sixty-five billion, two hundred seventy-six million, five hundred seven thousand, sixty-four".