66627384 has 48 divisors (see below), whose sum is σ = 172562520. Its totient is φ = 21436800.

The previous prime is 66627359. The next prime is 66627409. The reversal of 66627384 is 48372666.

It is an interprime number because it is at equal distance from previous prime (66627359) and next prime (66627409).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18534 + ... + 21834.

Almost surely, 2^66627384 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 66627384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86281260).

66627384 is an abundant number, since it is smaller than the sum of its proper divisors (105935136).

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

66627384 is a wasteful number, since it uses less digits than its factorization.

66627384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368 (or 3335 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 66627384 is about 8162.5598925827. The cubic root of 66627384 is about 405.4004756859.

The spelling of 66627384 in words is "sixty-six million, six hundred twenty-seven thousand, three hundred eighty-four".