67121610002 has 8 divisors (see below), whose sum is σ = 100691167500. Its totient is φ = 33557887504.

The previous prime is 67121609993. The next prime is 67121610067. The reversal of 67121610002 is 20001612176.

It can be written as a sum of positive squares in 2 ways, for example, as 60855462721 + 6266147281 = 246689^2 + 79159^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429877 + ... + 1476072.

Almost surely, 2^67121610002 is an apocalyptic number.

67121610002 is a deficient number, since it is larger than the sum of its proper divisors (33569557498).

67121610002 is a wasteful number, since it uses less digits than its factorization.

67121610002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917500.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 67121610002 in words is "sixty-seven billion, one hundred twenty-one million, six hundred ten thousand, two".