64962969566 has 12 divisors (see below), whose sum is σ = 107108367576. Its totient is φ = 29528622420.

The previous prime is 64962969557. The next prime is 64962969569. The reversal of 64962969566 is 66596926946.

It is a junction number, because it is equal to n+sod(n) for n = 64962969496 and 64962969505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64962969569) 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, 134220770 + ... + 134221253.

It is an arithmetic number, because the mean of its divisors is an integer number (8925697298).

Almost surely, 2^64962969566 is an apocalyptic number.

64962969566 is a deficient number, since it is larger than the sum of its proper divisors (42145398010).

64962969566 is a wasteful number, since it uses less digits than its factorization.

64962969566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268442047 (or 268442036 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 68.

The spelling of 64962969566 in words is "sixty-four billion, nine hundred sixty-two million, nine hundred sixty-nine thousand, five hundred sixty-six".