66022424 has 64 divisors (see below), whose sum is σ = 142884000. Its totient is φ = 28329984.

The previous prime is 66022417. The next prime is 66022459. The reversal of 66022424 is 42422066.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 66022393 and 66022402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189002 + ... + 189350.

Almost surely, 2^66022424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66022424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71442000).

66022424 is an abundant number, since it is smaller than the sum of its proper divisors (76861576).

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

66022424 is a wasteful number, since it uses less digits than its factorization.

66022424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 66022424 is about 8125.4183892277. The cubic root of 66022424 is about 404.1697649436.

The spelling of 66022424 in words is "sixty-six million, twenty-two thousand, four hundred twenty-four".