66334801 has 8 divisors (see below), whose sum is σ = 71573544. Its totient is φ = 61115520.

The previous prime is 66334789. The next prime is 66334819. The reversal of 66334801 is 10843366.

It can be written as a sum of positive squares in 4 ways, for example, as 1113025 + 65221776 = 1055^2 + 8076^2 .

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 66334801 - 2¹¹ = 66332753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66334841) 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, 2661 + ... + 11821.

It is an arithmetic number, because the mean of its divisors is an integer number (8946693).

Almost surely, 2^66334801 is an apocalyptic number.

It is an amenable number.

66334801 is a deficient number, since it is larger than the sum of its proper divisors (5238743).

66334801 is a wasteful number, since it uses less digits than its factorization.

66334801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66334801 is about 8144.6179161456. The cubic root of 66334801 is about 404.8061888300.

The spelling of 66334801 in words is "sixty-six million, three hundred thirty-four thousand, eight hundred one".