16954380109406 has 4 divisors (see below), whose sum is σ = 25431570164112. Its totient is φ = 8477190054702.

The previous prime is 16954380109393. The next prime is 16954380109411. The reversal of 16954380109406 is 60490108345961.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4238595027350 + ... + 4238595027353.

It is an arithmetic number, because the mean of its divisors is an integer number (6357892541028).

Almost surely, 2^{16954380109406} is an apocalyptic number.

16954380109406 is a deficient number, since it is larger than the sum of its proper divisors (8477190054706).

16954380109406 is an equidigital number, since it uses as much as digits as its factorization.

16954380109406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477190054705.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 16954380109406 in words is "sixteen trillion, nine hundred fifty-four billion, three hundred eighty million, one hundred nine thousand, four hundred six".