66741020 has 12 divisors (see below), whose sum is σ = 140156184. Its totient is φ = 26696400.

The previous prime is 66741019. The next prime is 66741023. The reversal of 66741020 is 2014766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66741023) 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, 1668506 + ... + 1668545.

It is an arithmetic number, because the mean of its divisors is an integer number (11679682).

Almost surely, 2^66741020 is an apocalyptic number.

It is an amenable number.

66741020 is an abundant number, since it is smaller than the sum of its proper divisors (73415164).

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

66741020 is a wasteful number, since it uses less digits than its factorization.

66741020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337060 (or 3337058 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 66741020 is about 8169.5177336242. The cubic root of 66741020 is about 405.6308210288.

Adding to 66741020 its reverse (2014766), we get a palindrome (68755786).

The spelling of 66741020 in words is "sixty-six million, seven hundred forty-one thousand, twenty".