65669101 has 2 divisors, whose sum is σ = 65669102. Its totient is φ = 65669100.

The previous prime is 65669099. The next prime is 65669119. The reversal of 65669101 is 10196656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59691076 + 5978025 = 7726^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 65669101 - 2¹ = 65669099 is a prime.

It is a super-2 number, since 2×65669101² = 8624861652296402, which contains 22 as substring.

Together with 65669099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65664101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32834550 + 32834551.

It is an arithmetic number, because the mean of its divisors is an integer number (32834551).

Almost surely, 2^65669101 is an apocalyptic number.

It is an amenable number.

65669101 is a deficient number, since it is larger than the sum of its proper divisors (1).

65669101 is an equidigital number, since it uses as much as digits as its factorization.

65669101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 65669101 is about 8103.6473886763. The cubic root of 65669101 is about 403.4474953269.

The spelling of 65669101 in words is "sixty-five million, six hundred sixty-nine thousand, one hundred one".