64122066 has 24 divisors (see below), whose sum is σ = 139536540. Its totient is φ = 21280896.

The previous prime is 64122049. The next prime is 64122101. The reversal of 64122066 is 66022146.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63536841 + 585225 = 7971^2 + 765^2 .

It is a super-2 number, since 2×64122066² = 8223278696216712, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3451 + ... + 11838.

Almost surely, 2^64122066 is an apocalyptic number.

64122066 is an abundant number, since it is smaller than the sum of its proper divisors (75414474).

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

64122066 is a wasteful number, since it uses less digits than its factorization.

64122066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15530 (or 15527 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64122066 is about 8007.6254907432. The cubic root of 64122066 is about 400.2541426612.

The spelling of 64122066 in words is "sixty-four million, one hundred twenty-two thousand, sixty-six".