66001435 has 8 divisors (see below), whose sum is σ = 79247376. Its totient is φ = 52770720.

The previous prime is 66001427. The next prime is 66001447. The reversal of 66001435 is 53410066.

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

It is not a de Polignac number, because 66001435 - 2³ = 66001427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10920 + ... + 15850.

It is an arithmetic number, because the mean of its divisors is an integer number (9905922).

Almost surely, 2^66001435 is an apocalyptic number.

66001435 is a deficient number, since it is larger than the sum of its proper divisors (13245941).

66001435 is a wasteful number, since it uses less digits than its factorization.

66001435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66001435 is about 8124.1267223007. The cubic root of 66001435 is about 404.1269309195.

The spelling of 66001435 in words is "sixty-six million, one thousand, four hundred thirty-five".