65456909764 has 6 divisors (see below), whose sum is σ = 114549592094. Its totient is φ = 32728454880.

The previous prime is 65456909741. The next prime is 65456909767. The reversal of 65456909764 is 46790965456.

It can be written as a sum of positive squares in only one way, i.e., 63827980164 + 1628929600 = 252642^2 + 40360^2 .

It is not an unprimeable number, because it can be changed into a prime (65456909767) 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 as a sum of consecutive naturals, namely, 8182113717 + ... + 8182113724.

Almost surely, 2^65456909764 is an apocalyptic number.

It is an amenable number.

65456909764 is a deficient number, since it is larger than the sum of its proper divisors (49092682330).

65456909764 is a wasteful number, since it uses less digits than its factorization.

65456909764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16364227445 (or 16364227443 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 61.

The spelling of 65456909764 in words is "sixty-five billion, four hundred fifty-six million, nine hundred nine thousand, seven hundred sixty-four".