66601434 has 8 divisors (see below), whose sum is σ = 133202880. Its totient is φ = 22200476.

The previous prime is 66601421. The next prime is 66601463. The reversal of 66601434 is 43410666.

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

66601434 is an admirable 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, 5550114 + ... + 5550125.

It is an arithmetic number, because the mean of its divisors is an integer number (16650360).

Almost surely, 2^66601434 is an apocalyptic number.

66601434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66601434 is a wasteful number, since it uses less digits than its factorization.

66601434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100244.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66601434 is about 8160.9701629157. The cubic root of 66601434 is about 405.3478371270.

The spelling of 66601434 in words is "sixty-six million, six hundred one thousand, four hundred thirty-four".