66222263413 has 4 divisors (see below), whose sum is σ = 66224633440. Its totient is φ = 66219893388.

The previous prime is 66222263383. The next prime is 66222263431. The reversal of 66222263413 is 31436222266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66222263413 - 2¹⁷ = 66222132341 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 (66222263213) 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, 1142595 + ... + 1199152.

It is an arithmetic number, because the mean of its divisors is an integer number (16556158360).

Almost surely, 2^66222263413 is an apocalyptic number.

It is an amenable number.

66222263413 is a deficient number, since it is larger than the sum of its proper divisors (2370027).

66222263413 is a wasteful number, since it uses less digits than its factorization.

66222263413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370026.

The product of its digits is 124416, while the sum is 37.

Adding to 66222263413 its reverse (31436222266), we get a palindrome (97658485679).

The spelling of 66222263413 in words is "sixty-six billion, two hundred twenty-two million, two hundred sixty-three thousand, four hundred thirteen".