65950066 has 16 divisors (see below), whose sum is σ = 121754304. Its totient is φ = 26090064.

The previous prime is 65950063. The next prime is 65950067. The reversal of 65950066 is 66005956.

It is a happy number.

It is a super-2 number, since 2×65950066² = 8698822410808712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65950061) 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, 181000 + ... + 181363.

It is an arithmetic number, because the mean of its divisors is an integer number (7609644).

Almost surely, 2^65950066 is an apocalyptic number.

65950066 is a deficient number, since it is larger than the sum of its proper divisors (55804238).

65950066 is a wasteful number, since it uses less digits than its factorization.

65950066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362385.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 65950066 is about 8120.9645978788. The cubic root of 65950066 is about 404.0220595411.

It can be divided in two parts, 65 and 950066, that added together give a triangular number (950131 = T₁₃₇₈).

The spelling of 65950066 in words is "sixty-five million, nine hundred fifty thousand, sixty-six".