67109241380661 has 16 divisors (see below), whose sum is σ = 103743754792320. Its totient is φ = 42794298851040.

The previous prime is 67109241380659. The next prime is 67109241380681. The reversal of 67109241380661 is 16608314290176.

67109241380661 is a `hidden beast` number, since 6 + 7 + 1 + 0 + 92 + 413 + 80 + 6 + 61 = 666.

It is not a de Polignac number, because 67109241380661 - 2¹ = 67109241380659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67109241380598 and 67109241380607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67109241380681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54033205000 + ... + 54033206241.

It is an arithmetic number, because the mean of its divisors is an integer number (6483984674520).

Almost surely, 2^{67109241380661} is an apocalyptic number.

It is an amenable number.

67109241380661 is a deficient number, since it is larger than the sum of its proper divisors (36634513411659).

67109241380661 is a wasteful number, since it uses less digits than its factorization.

67109241380661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108066411273 (or 108066411267 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 67109241380661 in words is "sixty-seven trillion, one hundred nine billion, two hundred forty-one million, three hundred eighty thousand, six hundred sixty-one".