66003432 has 32 divisors (see below), whose sum is σ = 180010080. Its totient is φ = 20000960.

The previous prime is 66003419. The next prime is 66003437. The reversal of 66003432 is 23430066.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (66003437) 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, 124743 + ... + 125270.

It is an arithmetic number, because the mean of its divisors is an integer number (5625315).

Almost surely, 2^66003432 is an apocalyptic number.

It is an amenable number.

66003432 is an abundant number, since it is smaller than the sum of its proper divisors (114006648).

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

66003432 is a wasteful number, since it uses less digits than its factorization.

66003432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250033 (or 250029 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 66003432 is about 8124.2496268886. The cubic root of 66003432 is about 404.1310067568.

Adding to 66003432 its reverse (23430066), we get a palindrome (89433498).

It can be divided in two parts, 660034 and 32, that added together give a palindrome (660066).

The spelling of 66003432 in words is "sixty-six million, three thousand, four hundred thirty-two".