66613422 has 16 divisors (see below), whose sum is σ = 133356240. Its totient is φ = 22182912.

The previous prime is 66613409. The next prime is 66613423. The reversal of 66613422 is 22431666.

It is a self number, because there is not a number n which added to its sum of digits gives 66613422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66613423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2104 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (8334765).

Almost surely, 2^66613422 is an apocalyptic number.

66613422 is an abundant number, since it is smaller than the sum of its proper divisors (66742818).

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

66613422 is a wasteful number, since it uses less digits than its factorization.

66613422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787.

The product of its digits is 10368, while the sum is 30.

The square root of 66613422 is about 8161.7046013685. The cubic root of 66613422 is about 405.3721560145.

The spelling of 66613422 in words is "sixty-six million, six hundred thirteen thousand, four hundred twenty-two".