67121249016 has 32 divisors (see below), whose sum is σ = 167809957200. Its totient is φ = 22372838400.

The previous prime is 67121248891. The next prime is 67121249089. The reversal of 67121249016 is 61094212176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820366 + ... + 898466.

Almost surely, 2^67121249016 is an apocalyptic number.

It is an amenable number.

67121249016 is an abundant number, since it is smaller than the sum of its proper divisors (100688708184).

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

67121249016 is a wasteful number, since it uses less digits than its factorization.

67121249016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113919 (or 113915 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 67121249016 in words is "sixty-seven billion, one hundred twenty-one million, two hundred forty-nine thousand, sixteen".