66043131351024 has 80 divisors (see below), whose sum is σ = 180691468934400. Its totient is φ = 20714357959680.

The previous prime is 66043131351011. The next prime is 66043131351059. The reversal of 66043131351024 is 42015313134066.

66043131351024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 6527772 + ... + 13217339.

It is an arithmetic number, because the mean of its divisors is an integer number (2258643361680).

Almost surely, 2^{66043131351024} is an apocalyptic number.

It is an amenable number.

66043131351024 is an abundant number, since it is smaller than the sum of its proper divisors (114648337583376).

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

66043131351024 is a wasteful number, since it uses less digits than its factorization.

66043131351024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19749238 (or 19749232 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 66043131351024 in words is "sixty-six trillion, forty-three billion, one hundred thirty-one million, three hundred fifty-one thousand, twenty-four".