66300540 has 24 divisors (see below), whose sum is σ = 185641680. Its totient is φ = 17680128.

The previous prime is 66300529. The next prime is 66300593. The reversal of 66300540 is 4500366.

It is a self number, because there is not a number n which added to its sum of digits gives 66300540.

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 7 ways as a sum of consecutive naturals, for example, 552445 + ... + 552564.

It is an arithmetic number, because the mean of its divisors is an integer number (7735070).

Almost surely, 2^66300540 is an apocalyptic number.

66300540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66300540 is an abundant number, since it is smaller than the sum of its proper divisors (119341140).

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

66300540 is a wasteful number, since it uses less digits than its factorization.

66300540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105021 (or 1105019 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 66300540 is about 8142.5143536871. The cubic root of 66300540 is about 404.7364845770.

The spelling of 66300540 in words is "sixty-six million, three hundred thousand, five hundred forty".