66369424 has 20 divisors (see below), whose sum is σ = 140281200. Its totient is φ = 30167840.

The previous prime is 66369397. The next prime is 66369427. The reversal of 66369424 is 42496366.

It is not an unprimeable number, because it can be changed into a prime (66369427) 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, 188374 + ... + 188725.

It is an arithmetic number, because the mean of its divisors is an integer number (7014060).

Almost surely, 2^66369424 is an apocalyptic number.

It is an amenable number.

66369424 is an abundant number, since it is smaller than the sum of its proper divisors (73911776).

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

66369424 is a wasteful number, since it uses less digits than its factorization.

66369424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377118 (or 377112 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The square root of 66369424 is about 8146.7431529415. The cubic root of 66369424 is about 404.8766051963.

The spelling of 66369424 in words is "sixty-six million, three hundred sixty-nine thousand, four hundred twenty-four".