67161205011 has 64 divisors (see below), whose sum is σ = 96401208960. Its totient is φ = 41525084160.

The previous prime is 67161205003. The next prime is 67161205037. The reversal of 67161205011 is 11050216176.

It is not a de Polignac number, because 67161205011 - 2³ = 67161205003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67161205011.

It is not an unprimeable number, because it can be changed into a prime (67161205061) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 37540305 + ... + 37542093.

It is an arithmetic number, because the mean of its divisors is an integer number (1506268890).

Almost surely, 2^67161205011 is an apocalyptic number.

67161205011 is a deficient number, since it is larger than the sum of its proper divisors (29240003949).

67161205011 is a wasteful number, since it uses less digits than its factorization.

67161205011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 67161205011 in words is "sixty-seven billion, one hundred sixty-one million, two hundred five thousand, eleven".