16661176045771 has 8 divisors (see below), whose sum is σ = 18569731816080. Its totient is φ = 14855785452288.

The previous prime is 16661176045763. The next prime is 16661176045859. The reversal of 16661176045771 is 17754067116661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16661176045771 - 2³ = 16661176045763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16661176045271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25791293866 + ... + 25791294511.

It is an arithmetic number, because the mean of its divisors is an integer number (2321216477010).

Almost surely, 2^{16661176045771} is an apocalyptic number.

16661176045771 is a deficient number, since it is larger than the sum of its proper divisors (1908555770309).

16661176045771 is a wasteful number, since it uses less digits than its factorization.

16661176045771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51582588413.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 16661176045771 in words is "sixteen trillion, six hundred sixty-one billion, one hundred seventy-six million, forty-five thousand, seven hundred seventy-one".