67620366644004 has 30 divisors (see below), whose sum is σ = 176772995517734. Its totient is φ = 22540122214560.

The previous prime is 67620366643937. The next prime is 67620366644011. The reversal of 67620366644004 is 40044666302676.

It can be written as a sum of positive squares in only one way, i.e., 59739141392100 + 7881225251904 = 7729110^2 + 2807352^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 104352417337 + ... + 104352417984.

Almost surely, 2^{67620366644004} is an apocalyptic number.

It is an amenable number.

67620366644004 is an abundant number, since it is smaller than the sum of its proper divisors (109152628873730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67620366644004 is a wasteful number, since it uses less digits than its factorization.

67620366644004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208704835337 (or 208704835326 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 54.

The spelling of 67620366644004 in words is "sixty-seven trillion, six hundred twenty billion, three hundred sixty-six million, six hundred forty-four thousand, four".