64204063215446 has 32 divisors (see below), whose sum is σ = 121171495484160. Its totient is φ = 24785078608800.

The previous prime is 64204063215443. The next prime is 64204063215449. The reversal of 64204063215446 is 64451236040246.

64204063215446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64204063215443) and next prime (64204063215449).

It is a super-2 number, since 2×64204063215446² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64204063215446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64204063215443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1912412120 + ... + 1912445691.

It is an arithmetic number, because the mean of its divisors is an integer number (3786609233880).

Almost surely, 2^{64204063215446} is an apocalyptic number.

64204063215446 is a deficient number, since it is larger than the sum of its proper divisors (56967432268714).

64204063215446 is a wasteful number, since it uses less digits than its factorization.

64204063215446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824857940.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 64204063215446 in words is "sixty-four trillion, two hundred four billion, sixty-three million, two hundred fifteen thousand, four hundred forty-six".