66434896 has 20 divisors (see below), whose sum is σ = 140419584. Its totient is φ = 30197600.

The previous prime is 66434867. The next prime is 66434933. The reversal of 66434896 is 69843466.

It is a congruent number.

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, 188560 + ... + 188911.

Almost surely, 2^66434896 is an apocalyptic number.

It is an amenable number.

66434896 is an abundant number, since it is smaller than the sum of its proper divisors (73984688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66434896 is a wasteful number, since it uses less digits than its factorization.

66434896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377490 (or 377484 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 66434896 is about 8150.7604553195. The cubic root of 66434896 is about 405.0096954444.

The spelling of 66434896 in words is "sixty-six million, four hundred thirty-four thousand, eight hundred ninety-six".