16111717061 has 4 divisors (see below), whose sum is σ = 17576418624. Its totient is φ = 14647015500.

The previous prime is 16111717043. The next prime is 16111717087. The reversal of 16111717061 is 16071711161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16111717061 - 2⁶ = 16111716997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16111717001) 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, 732350765 + ... + 732350786.

It is an arithmetic number, because the mean of its divisors is an integer number (4394104656).

Almost surely, 2^16111717061 is an apocalyptic number.

16111717061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16111717061 is a deficient number, since it is larger than the sum of its proper divisors (1464701563).

16111717061 is a wasteful number, since it uses less digits than its factorization.

16111717061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464701562.

The product of its (nonzero) digits is 1764, while the sum is 32.

The spelling of 16111717061 in words is "sixteen billion, one hundred eleven million, seven hundred seventeen thousand, sixty-one".