66464026674304 has 64 divisors (see below), whose sum is σ = 151334541682560. Its totient is φ = 28482663757824.

The previous prime is 66464026674259. The next prime is 66464026674307. The reversal of 66464026674304 is 40347662046466.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (66464026674307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10847364 + ... + 15830140.

It is an arithmetic number, because the mean of its divisors is an integer number (2364602213790).

Almost surely, 2^{66464026674304} is an apocalyptic number.

66464026674304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66464026674304 is an abundant number, since it is smaller than the sum of its proper divisors (84870515008256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66464026674304 is a wasteful number, since it uses less digits than its factorization.

66464026674304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997685 (or 4997673 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 58.

The spelling of 66464026674304 in words is "sixty-six trillion, four hundred sixty-four billion, twenty-six million, six hundred seventy-four thousand, three hundred four".