64914380966 has 32 divisors (see below), whose sum is σ = 103988551680. Its totient is φ = 30284827776.

The previous prime is 64914380893. The next prime is 64914381019. The reversal of 64914380966 is 66908341946.

It is a happy number.

It is a super-3 number, since 3×64914380966³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6726941 + ... + 6736583.

It is an arithmetic number, because the mean of its divisors is an integer number (3249642240).

Almost surely, 2^64914380966 is an apocalyptic number.

64914380966 is a deficient number, since it is larger than the sum of its proper divisors (39074170714).

64914380966 is a wasteful number, since it uses less digits than its factorization.

64914380966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11348.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 64914380966 in words is "sixty-four billion, nine hundred fourteen million, three hundred eighty thousand, nine hundred sixty-six".