67400666740 has 48 divisors (see below), whose sum is σ = 154489737024. Its totient is φ = 24496486400.

The previous prime is 67400666719. The next prime is 67400666771. The reversal of 67400666740 is 4766600476.

It is a super-3 number, since 3×67400666740³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345492 + ... + 504148.

It is an arithmetic number, because the mean of its divisors is an integer number (3218536188).

Almost surely, 2^67400666740 is an apocalyptic number.

It is an amenable number.

67400666740 is an abundant number, since it is smaller than the sum of its proper divisors (87089070284).

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

67400666740 is a wasteful number, since it uses less digits than its factorization.

67400666740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160608 (or 160606 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 67400666740 in words is "sixty-seven billion, four hundred million, six hundred sixty-six thousand, seven hundred forty".