640460053650233 has 8 divisors (see below), whose sum is σ = 655355183184768. Its totient is φ = 625564956374064.

The previous prime is 640460053650211. The next prime is 640460053650281. The reversal of 640460053650233 is 332056350064046.

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

It is a cyclic number.

It is not a de Polignac number, because 640460053650233 - 2¹² = 640460053646137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (640460053650283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34713635 + ... + 49859367.

It is an arithmetic number, because the mean of its divisors is an integer number (81919397898096).

Almost surely, 2^{640460053650233} is an apocalyptic number.

It is an amenable number.

640460053650233 is a deficient number, since it is larger than the sum of its proper divisors (14895129534535).

640460053650233 is a wasteful number, since it uses less digits than its factorization.

640460053650233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16129183.

The product of its (nonzero) digits is 4665600, while the sum is 47.

The spelling of 640460053650233 in words is "six hundred forty trillion, four hundred sixty billion, fifty-three million, six hundred fifty thousand, two hundred thirty-three".