66420362 has 8 divisors (see below), whose sum is σ = 100657956. Its totient is φ = 32867712.

The previous prime is 66420317. The next prime is 66420379. The reversal of 66420362 is 26302466.

It can be written as a sum of positive squares in 2 ways, for example, as 66406201 + 14161 = 8149^2 + 119^2 .

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

It is a super-2 number, since 2×66420362² = 8823328976422088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170993 + ... + 171380.

Almost surely, 2^66420362 is an apocalyptic number.

66420362 is a deficient number, since it is larger than the sum of its proper divisors (34237594).

66420362 is a wasteful number, since it uses less digits than its factorization.

66420362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342472.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 66420362 is about 8149.8688333003. The cubic root of 66420362 is about 404.9801585565.

The spelling of 66420362 in words is "sixty-six million, four hundred twenty thousand, three hundred sixty-two".