643088662096612 has 12 divisors (see below), whose sum is σ = 1125658571255596. Its totient is φ = 321471927452160.

The previous prime is 643088662096547. The next prime is 643088662096663. The reversal of 643088662096612 is 216690266880346.

643088662096612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 232530049132096 + 410558612964516 = 15248936^2 + 20262246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18100879053 + ... + 18100914580.

Almost surely, 2^{643088662096612} is an apocalyptic number.

It is an amenable number.

643088662096612 is a deficient number, since it is larger than the sum of its proper divisors (482569909158984).

643088662096612 is a wasteful number, since it uses less digits than its factorization.

643088662096612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36201798078 (or 36201798076 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 67.

The spelling of 643088662096612 in words is "six hundred forty-three trillion, eighty-eight billion, six hundred sixty-two million, ninety-six thousand, six hundred twelve".