63412066 has 4 divisors (see below), whose sum is σ = 95118102. Its totient is φ = 31706032.

The previous prime is 63412061. The next prime is 63412073. The reversal of 63412066 is 66021436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61074225 + 2337841 = 7815^2 + 1529^2 .

It is a super-2 number, since 2×63412066² = 8042180228776712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63412061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15853015 + ... + 15853018.

Almost surely, 2^63412066 is an apocalyptic number.

63412066 is a deficient number, since it is larger than the sum of its proper divisors (31706036).

63412066 is a wasteful number, since it uses less digits than its factorization.

63412066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31706035.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 63412066 is about 7963.1693439233. The cubic root of 63412066 is about 398.7713675195.

The spelling of 63412066 in words is "sixty-three million, four hundred twelve thousand, sixty-six".