640224266062 has 4 divisors (see below), whose sum is σ = 960336399096. Its totient is φ = 320112133030.

The previous prime is 640224266047. The next prime is 640224266081. The reversal of 640224266062 is 260662422046.

It is a happy number.

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

It is a super-2 number, since 2×640224266062² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160056066514 + ... + 160056066517.

It is an arithmetic number, because the mean of its divisors is an integer number (240084099774).

Almost surely, 2^640224266062 is an apocalyptic number.

640224266062 is a deficient number, since it is larger than the sum of its proper divisors (320112133034).

640224266062 is a wasteful number, since it uses less digits than its factorization.

640224266062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320112133033.

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 640224266062 in words is "six hundred forty billion, two hundred twenty-four million, two hundred sixty-six thousand, sixty-two".