64066419 has 6 divisors (see below), whose sum is σ = 92540396. Its totient is φ = 42710940.

The previous prime is 64066417. The next prime is 64066433. The reversal of 64066419 is 91466046.

64066419 is a `hidden beast` number, since 6 + 4 + 0 + 6 + 641 + 9 = 666.

It is not a de Polignac number, because 64066419 - 2¹ = 64066417 is a prime.

It is a super-2 number, since 2×64066419² = 8209012086967122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64066411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3559237 + ... + 3559254.

Almost surely, 2^64066419 is an apocalyptic number.

64066419 is a deficient number, since it is larger than the sum of its proper divisors (28473977).

64066419 is a wasteful number, since it uses less digits than its factorization.

64066419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118497 (or 7118494 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 64066419 is about 8004.1501110361. The cubic root of 64066419 is about 400.1383250766.

The spelling of 64066419 in words is "sixty-four million, sixty-six thousand, four hundred nineteen".