66602032 has 40 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 28057152.

The previous prime is 66601991. The next prime is 66602033. The reversal of 66602032 is 23020666.

It is a junction number, because it is equal to n+sod(n) for n = 66601988 and 66602006.

It is not an unprimeable number, because it can be changed into a prime (66602033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569 + ... + 11647.

It is an arithmetic number, because the mean of its divisors is an integer number (3749760).

Almost surely, 2^66602032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66602032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74995200).

66602032 is an abundant number, since it is smaller than the sum of its proper divisors (83388368).

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

66602032 is a wasteful number, since it uses less digits than its factorization.

66602032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10153 (or 10147 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 66602032 is about 8161.0068006343. The cubic root of 66602032 is about 405.3490503005.

Adding to 66602032 its reverse (23020666), we get a palindrome (89622698).

The spelling of 66602032 in words is "sixty-six million, six hundred two thousand, thirty-two".