646306436341633 has 8 divisors (see below), whose sum is σ = 680576132482400. Its totient is φ = 612062096992128.

The previous prime is 646306436341583. The next prime is 646306436341681. The reversal of 646306436341633 is 336143634603646.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-646306436341633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646306436341333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6339145488 + ... + 6339247441.

It is an arithmetic number, because the mean of its divisors is an integer number (85072016560300).

Almost surely, 2^{646306436341633} is an apocalyptic number.

It is an amenable number.

646306436341633 is a deficient number, since it is larger than the sum of its proper divisors (34269696140767).

646306436341633 is a wasteful number, since it uses less digits than its factorization.

646306436341633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12678395631.

The product of its (nonzero) digits is 120932352, while the sum is 58.

The spelling of 646306436341633 in words is "six hundred forty-six trillion, three hundred six billion, four hundred thirty-six million, three hundred forty-one thousand, six hundred thirty-three".