64992065376446 has 16 divisors (see below), whose sum is σ = 105000000258048. Its totient is φ = 29992675658400.

The previous prime is 64992065376439. The next prime is 64992065376479. The reversal of 64992065376446 is 64467356029946.

64992065376446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64992065376446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152374925 + ... + 152800856.

It is an arithmetic number, because the mean of its divisors is an integer number (6562500016128).

Almost surely, 2^{64992065376446} is an apocalyptic number.

64992065376446 is a deficient number, since it is larger than the sum of its proper divisors (40007934881602).

64992065376446 is a wasteful number, since it uses less digits than its factorization.

64992065376446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305183987.

The product of its (nonzero) digits is 1410877440, while the sum is 71.

The spelling of 64992065376446 in words is "sixty-four trillion, nine hundred ninety-two billion, sixty-five million, three hundred seventy-six thousand, four hundred forty-six".