66305032 has 32 divisors (see below), whose sum is σ = 135889920. Its totient is φ = 30193920.

The previous prime is 66305023. The next prime is 66305033. The reversal of 66305032 is 23050366.

It is a junction number, because it is equal to n+sod(n) for n = 66304988 and 66305006.

It is not an unprimeable number, because it can be changed into a prime (66305033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3648 + ... + 12079.

It is an arithmetic number, because the mean of its divisors is an integer number (4246560).

Almost surely, 2^66305032 is an apocalyptic number.

66305032 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66305032 is an abundant number, since it is smaller than the sum of its proper divisors (69584888).

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

66305032 is a wasteful number, since it uses less digits than its factorization.

66305032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15781 (or 15777 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 66305032 is about 8142.7901851884. The cubic root of 66305032 is about 404.7456249512.

Adding to 66305032 its reverse (23050366), we get a palindrome (89355398).

The spelling of 66305032 in words is "sixty-six million, three hundred five thousand, thirty-two".