66328367424 has 112 divisors (see below), whose sum is σ = 202709532096. Its totient is φ = 18917171200.

The previous prime is 66328367393. The next prime is 66328367453. The reversal of 66328367424 is 42476382366.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887787 + ... + 959594.

Almost surely, 2^66328367424 is an apocalyptic number.

66328367424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66328367424 is an abundant number, since it is smaller than the sum of its proper divisors (136381164672).

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

66328367424 is a wasteful number, since it uses less digits than its factorization.

66328367424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847424 (or 1847414 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 51.

The spelling of 66328367424 in words is "sixty-six billion, three hundred twenty-eight million, three hundred sixty-seven thousand, four hundred twenty-four".