64066240226 has 4 divisors (see below), whose sum is σ = 96099360342. Its totient is φ = 32033120112.

The previous prime is 64066240193. The next prime is 64066240229. The reversal of 64066240226 is 62204266046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52370034025 + 11696206201 = 228845^2 + 108149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64066240226.

It is not an unprimeable number, because it can be changed into a prime (64066240229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16016560055 + ... + 16016560058.

Almost surely, 2^64066240226 is an apocalyptic number.

64066240226 is a deficient number, since it is larger than the sum of its proper divisors (32033120116).

64066240226 is a wasteful number, since it uses less digits than its factorization.

64066240226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32033120115.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 64066240226 in words is "sixty-four billion, sixty-six million, two hundred forty thousand, two hundred twenty-six".