64465856446 has 16 divisors (see below), whose sum is σ = 97173066240. Its totient is φ = 32074885080.

The previous prime is 64465856437. The next prime is 64465856453.

64465856446 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4325235 + ... + 4340113.

It is an arithmetic number, because the mean of its divisors is an integer number (6073316640).

Almost surely, 2^64465856446 is an apocalyptic number.

64465856446 is a deficient number, since it is larger than the sum of its proper divisors (32707209794).

64465856446 is a wasteful number, since it uses less digits than its factorization.

64465856446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25359.

The product of its digits is 66355200, while the sum is 58.

The spelling of 64465856446 in words is "sixty-four billion, four hundred sixty-five million, eight hundred fifty-six thousand, four hundred forty-six".