646650101654233 has 4 divisors (see below), whose sum is σ = 655757849564928. Its totient is φ = 637542353743540.

The previous prime is 646650101654189. The next prime is 646650101654239. The reversal of 646650101654233 is 332456101056646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 646650101654233 - 2³³ = 646641511719641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646650101654239) 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, 4553873955241 + ... + 4553873955382.

It is an arithmetic number, because the mean of its divisors is an integer number (163939462391232).

Almost surely, 2^{646650101654233} is an apocalyptic number.

It is an amenable number.

646650101654233 is a deficient number, since it is larger than the sum of its proper divisors (9107747910695).

646650101654233 is an equidigital number, since it uses as much as digits as its factorization.

646650101654233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9107747910694.

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 646650101654233 in words is "six hundred forty-six trillion, six hundred fifty billion, one hundred one million, six hundred fifty-four thousand, two hundred thirty-three".