67280523516 has 72 divisors (see below), whose sum is σ = 170727626160. Its totient is φ = 22340307456.

The previous prime is 67280523463. The next prime is 67280523559. The reversal of 67280523516 is 61532508276.

67280523516 is a `hidden beast` number, since 6 + 7 + 2 + 80 + 52 + 3 + 516 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12698980 + ... + 12704276.

It is an arithmetic number, because the mean of its divisors is an integer number (2371217030).

Almost surely, 2^67280523516 is an apocalyptic number.

It is an amenable number.

67280523516 is an abundant number, since it is smaller than the sum of its proper divisors (103447102644).

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

67280523516 is a wasteful number, since it uses less digits than its factorization.

67280523516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 67280523516 in words is "sixty-seven billion, two hundred eighty million, five hundred twenty-three thousand, five hundred sixteen".