65669073 has 16 divisors (see below), whose sum is σ = 92401920. Its totient is φ = 41369616.

The previous prime is 65669069. The next prime is 65669081. The reversal of 65669073 is 37096656.

It is not a de Polignac number, because 65669073 - 2² = 65669069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65669063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25386 + ... + 27852.

It is an arithmetic number, because the mean of its divisors is an integer number (5775120).

Almost surely, 2^65669073 is an apocalyptic number.

It is an amenable number.

65669073 is a deficient number, since it is larger than the sum of its proper divisors (26732847).

65669073 is a wasteful number, since it uses less digits than its factorization.

65669073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 65669073 is about 8103.6456610590. The cubic root of 65669073 is about 403.4474379862.

The spelling of 65669073 in words is "sixty-five million, six hundred sixty-nine thousand, seventy-three".