66233213461399 has 4 divisors (see below), whose sum is σ = 67221768886264. Its totient is φ = 65244658036536.

The previous prime is 66233213461391. The next prime is 66233213461403. The reversal of 66233213461399 is 99316431233266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66233213461399 - 2³ = 66233213461391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66233213461391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494277712332 + ... + 494277712465.

It is an arithmetic number, because the mean of its divisors is an integer number (16805442221566).

Almost surely, 2^{66233213461399} is an apocalyptic number.

66233213461399 is a deficient number, since it is larger than the sum of its proper divisors (988555424865).

66233213461399 is an equidigital number, since it uses as much as digits as its factorization.

66233213461399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988555424864.

The product of its digits is 22674816, while the sum is 58.

The spelling of 66233213461399 in words is "sixty-six trillion, two hundred thirty-three billion, two hundred thirteen million, four hundred sixty-one thousand, three hundred ninety-nine".