66934511 has 8 divisors (see below), whose sum is σ = 80522880. Its totient is φ = 54352728.

The previous prime is 66934453. The next prime is 66934513. The reversal of 66934511 is 11543966.

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

It is a cyclic number.

It is not a de Polignac number, because 66934511 - 2¹⁰ = 66933487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66934513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251501 + ... + 251766.

It is an arithmetic number, because the mean of its divisors is an integer number (10065360).

Almost surely, 2^66934511 is an apocalyptic number.

66934511 is a deficient number, since it is larger than the sum of its proper divisors (13588369).

66934511 is a wasteful number, since it uses less digits than its factorization.

66934511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503293.

The product of its digits is 19440, while the sum is 35.

The square root of 66934511 is about 8181.3514164837. The cubic root of 66934511 is about 406.0224352021.

The spelling of 66934511 in words is "sixty-six million, nine hundred thirty-four thousand, five hundred eleven".