65950069 has 4 divisors (see below), whose sum is σ = 66784960. Its totient is φ = 65115180.

The previous prime is 65950067. The next prime is 65950081. The reversal of 65950069 is 96005956.

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 a cyclic number.

It is not a de Polignac number, because 65950069 - 2¹ = 65950067 is a prime.

It is a super-2 number, since 2×65950069² = 8698823202209522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 417327 + ... + 417484.

It is an arithmetic number, because the mean of its divisors is an integer number (16696240).

Almost surely, 2^65950069 is an apocalyptic number.

It is an amenable number.

65950069 is a deficient number, since it is larger than the sum of its proper divisors (834891).

65950069 is an equidigital number, since it uses as much as digits as its factorization.

65950069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834890.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 65950069 is about 8120.9647825859. The cubic root of 65950069 is about 404.0220656673.

The spelling of 65950069 in words is "sixty-five million, nine hundred fifty thousand, sixty-nine".