66512002 has 8 divisors (see below), whose sum is σ = 99960336. Its totient is φ = 33191892.

The previous prime is 66511997. The next prime is 66512009. The reversal of 66512002 is 20021566.

66512002 is nontrivially palindromic in base 3.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66512009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30748 + ... + 32839.

It is an arithmetic number, because the mean of its divisors is an integer number (12495042).

Almost surely, 2^66512002 is an apocalyptic number.

66512002 is a deficient number, since it is larger than the sum of its proper divisors (33448334).

66512002 is a wasteful number, since it uses less digits than its factorization.

66512002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64112.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 66512002 is about 8155.4890717847. The cubic root of 66512002 is about 405.1663229883.

Adding to 66512002 its reverse (20021566), we get a palindrome (86533568).

The spelling of 66512002 in words is "sixty-six million, five hundred twelve thousand, two".