16660404354104 has 16 divisors (see below), whose sum is σ = 35700866473200. Its totient is φ = 7140173294592.

The previous prime is 16660404354103. The next prime is 16660404354241. The reversal of 16660404354104 is 40145340406661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16660404354103) 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, 148753610249 + ... + 148753610360.

It is an arithmetic number, because the mean of its divisors is an integer number (2231304154575).

Almost surely, 2^{16660404354104} is an apocalyptic number.

16660404354104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16660404354104 is an abundant number, since it is smaller than the sum of its proper divisors (19040462119096).

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

16660404354104 is a wasteful number, since it uses less digits than its factorization.

16660404354104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297507220622 (or 297507220618 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 16660404354104 in words is "sixteen trillion, six hundred sixty billion, four hundred four million, three hundred fifty-four thousand, one hundred four".