66300372 has 36 divisors (see below), whose sum is σ = 169483860. Its totient is φ = 21850752.

The previous prime is 66300371. The next prime is 66300389. The reversal of 66300372 is 27300366.

It can be written as a sum of positive squares in 2 ways, for example, as 37527876 + 28772496 = 6126^2 + 5364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66300371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7143 + ... + 13550.

It is an arithmetic number, because the mean of its divisors is an integer number (4707885).

Almost surely, 2^66300372 is an apocalyptic number.

It is an amenable number.

66300372 is an abundant number, since it is smaller than the sum of its proper divisors (103183488).

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

66300372 is a wasteful number, since it uses less digits than its factorization.

66300372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20792 (or 20787 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 66300372 is about 8142.5040374568. The cubic root of 66300372 is about 404.7361427206.

The spelling of 66300372 in words is "sixty-six million, three hundred thousand, three hundred seventy-two".