16661062173464 has 32 divisors (see below), whose sum is σ = 33637737704400. Its totient is φ = 7707610014720.

The previous prime is 16661062173463. The next prime is 16661062173499. The reversal of 16661062173464 is 46437126016661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16661062173461) 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, 1038193757 + ... + 1038209804.

Almost surely, 2^{16661062173464} is an apocalyptic number.

It is an amenable number.

16661062173464 is an abundant number, since it is smaller than the sum of its proper divisors (16976675530936).

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

16661062173464 is a wasteful number, since it uses less digits than its factorization.

16661062173464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076403643 (or 2076403639 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 16661062173464 in words is "sixteen trillion, six hundred sixty-one billion, sixty-two million, one hundred seventy-three thousand, four hundred sixty-four".