16161166111067 has 4 divisors (see below), whose sum is σ = 16216323674880. Its totient is φ = 16106008547256.

The previous prime is 16161166111039. The next prime is 16161166111163. The reversal of 16161166111067 is 76011166116161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16161166111067 is a prime.

It is a super-2 number, since 2×16161166111067² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161166161067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27578781467 + ... + 27578782052.

It is an arithmetic number, because the mean of its divisors is an integer number (4054080918720).

Almost surely, 2^{16161166111067} is an apocalyptic number.

16161166111067 is a deficient number, since it is larger than the sum of its proper divisors (55157563813).

16161166111067 is an equidigital number, since it uses as much as digits as its factorization.

16161166111067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55157563812.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 16161166111067 in words is "sixteen trillion, one hundred sixty-one billion, one hundred sixty-six million, one hundred eleven thousand, sixty-seven".