66830601 has 4 divisors (see below), whose sum is σ = 89107472. Its totient is φ = 44553732.

The previous prime is 66830597. The next prime is 66830611. The reversal of 66830601 is 10603866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66830601 - 2² = 66830597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66830611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11138431 + ... + 11138436.

It is an arithmetic number, because the mean of its divisors is an integer number (22276868).

Almost surely, 2^66830601 is an apocalyptic number.

It is an amenable number.

66830601 is a deficient number, since it is larger than the sum of its proper divisors (22276871).

66830601 is a wasteful number, since it uses less digits than its factorization.

66830601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22276870.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 66830601 is about 8174.9985321100. The cubic root of 66830601 is about 405.8122215597.

The spelling of 66830601 in words is "sixty-six million, eight hundred thirty thousand, six hundred one".