66461230235426 has 16 divisors (see below), whose sum is σ = 109180117468800. Its totient is φ = 30154508632848.

The previous prime is 66461230235423. The next prime is 66461230235441. The reversal of 66461230235426 is 62453203216466.

66461230235426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66461230235423) 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, 21662720186 + ... + 21662723253.

It is an arithmetic number, because the mean of its divisors is an integer number (6823757341800).

Almost surely, 2^{66461230235426} is an apocalyptic number.

66461230235426 is a deficient number, since it is larger than the sum of its proper divisors (42718887233374).

66461230235426 is a wasteful number, since it uses less digits than its factorization.

66461230235426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43325443513.

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 66461230235426 in words is "sixty-six trillion, four hundred sixty-one billion, two hundred thirty million, two hundred thirty-five thousand, four hundred twenty-six".