65961222 has 8 divisors (see below), whose sum is σ = 131922456. Its totient is φ = 21987072.

The previous prime is 65961187. The next prime is 65961229. The reversal of 65961222 is 22216956.

It is a sphenic number, since it is the product of 3 distinct primes.

65961222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65961229) 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, 5496763 + ... + 5496774.

It is an arithmetic number, because the mean of its divisors is an integer number (16490307).

Almost surely, 2^65961222 is an apocalyptic number.

65961222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65961222 is a wasteful number, since it uses less digits than its factorization.

65961222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10993542.

The product of its digits is 12960, while the sum is 33.

The square root of 65961222 is about 8121.6514330523. The cubic root of 65961222 is about 404.0448394828.

The spelling of 65961222 in words is "sixty-five million, nine hundred sixty-one thousand, two hundred twenty-two".