67644040330 has 8 divisors (see below), whose sum is σ = 121759272612. Its totient is φ = 27057616128.

The previous prime is 67644040307. The next prime is 67644040361. The reversal of 67644040330 is 3304044676.

It can be written as a sum of positive squares in 2 ways, for example, as 67453958961 + 190081369 = 259719^2 + 13787^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 67644040330.

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, 3382202007 + ... + 3382202026.

Almost surely, 2^67644040330 is an apocalyptic number.

67644040330 is a deficient number, since it is larger than the sum of its proper divisors (54115232282).

67644040330 is a wasteful number, since it uses less digits than its factorization.

67644040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764404040.

The product of its (nonzero) digits is 145152, while the sum is 37.

The spelling of 67644040330 in words is "sixty-seven billion, six hundred forty-four million, forty thousand, three hundred thirty".