16661173037142 has 32 divisors (see below), whose sum is σ = 33721338857472. Its totient is φ = 5487414200064.

The previous prime is 16661173037087. The next prime is 16661173037183. The reversal of 16661173037142 is 24173037116661.

It is a junction number, because it is equal to n+sod(n) for n = 16661173037091 and 16661173037100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23227818 + ... + 23934365.

It is an arithmetic number, because the mean of its divisors is an integer number (1053791839296).

Almost surely, 2^{16661173037142} is an apocalyptic number.

16661173037142 is an abundant number, since it is smaller than the sum of its proper divisors (17060165820330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16661173037142 is a wasteful number, since it uses less digits than its factorization.

16661173037142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47162892.

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 16661173037142 in words is "sixteen trillion, six hundred sixty-one billion, one hundred seventy-three million, thirty-seven thousand, one hundred forty-two".