66121402337463 has 8 divisors (see below), whose sum is σ = 96176585218176. Its totient is φ = 40073577174200.

The previous prime is 66121402337357. The next prime is 66121402337491. The reversal of 66121402337463 is 36473320412166.

It is a happy number.

66121402337463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66121402337463 - 2³⁶ = 66052682860727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66121402377463) 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 7 ways as a sum of consecutive naturals, for example, 1001839429323 + ... + 1001839429388.

It is an arithmetic number, because the mean of its divisors is an integer number (12022073152272).

Almost surely, 2^{66121402337463} is an apocalyptic number.

66121402337463 is a deficient number, since it is larger than the sum of its proper divisors (30055182880713).

66121402337463 is a wasteful number, since it uses less digits than its factorization.

66121402337463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003678858725.

The product of its (nonzero) digits is 2612736, while the sum is 48.

The spelling of 66121402337463 in words is "sixty-six trillion, one hundred twenty-one billion, four hundred two million, three hundred thirty-seven thousand, four hundred sixty-three".