66489202 has 8 divisors (see below), whose sum is σ = 107405676. Its totient is φ = 30687312.

The previous prime is 66489197. The next prime is 66489211. The reversal of 66489202 is 20298466.

It can be written as a sum of positive squares in 2 ways, for example, as 53012961 + 13476241 = 7281^2 + 3671^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278613 + ... + 1278664.

Almost surely, 2^66489202 is an apocalyptic number.

66489202 is a deficient number, since it is larger than the sum of its proper divisors (40916474).

66489202 is a wasteful number, since it uses less digits than its factorization.

66489202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557292.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 66489202 is about 8154.0911204131. The cubic root of 66489202 is about 405.1200213302.

The spelling of 66489202 in words is "sixty-six million, four hundred eighty-nine thousand, two hundred two".