67766155075560 has 64 divisors (see below), whose sum is σ = 203389102889280. Its totient is φ = 18062918005760.

The previous prime is 67766155075529. The next prime is 67766155075573. The reversal of 67766155075560 is 6557055166776.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 67766155075491 and 67766155075500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125615361 + ... + 126153680.

It is an arithmetic number, because the mean of its divisors is an integer number (3177954732645).

Almost surely, 2^{67766155075560} is an apocalyptic number.

67766155075560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67766155075560 is an abundant number, since it is smaller than the sum of its proper divisors (135622947813720).

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

67766155075560 is a wasteful number, since it uses less digits than its factorization.

67766155075560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251771298 (or 251771294 counting only the distinct ones).

The product of its (nonzero) digits is 277830000, while the sum is 66.

The spelling of 67766155075560 in words is "sixty-seven trillion, seven hundred sixty-six billion, one hundred fifty-five million, seventy-five thousand, five hundred sixty".