66465107 has 2 divisors, whose sum is σ = 66465108. Its totient is φ = 66465106.

The previous prime is 66465103. The next prime is 66465109. The reversal of 66465107 is 70156466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66465107 - 2² = 66465103 is a prime.

It is a super-2 number, since 2×66465107² = 8835220897042898, which contains 22 as substring.

Together with 66465109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66465103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33232553 + 33232554.

It is an arithmetic number, because the mean of its divisors is an integer number (33232554).

Almost surely, 2^66465107 is an apocalyptic number.

66465107 is a deficient number, since it is larger than the sum of its proper divisors (1).

66465107 is an equidigital number, since it uses as much as digits as its factorization.

66465107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 66465107 is about 8152.6135073362. The cubic root of 66465107 is about 405.0710783139.

The spelling of 66465107 in words is "sixty-six million, four hundred sixty-five thousand, one hundred seven".