16704143890 has 64 divisors (see below), whose sum is σ = 34871316480. Its totient is φ = 5642841600.

The previous prime is 16704143887. The next prime is 16704143891. The reversal of 16704143890 is 9834140761.

It is not an unprimeable number, because it can be changed into a prime (16704143891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1820815 + ... + 1829965.

It is an arithmetic number, because the mean of its divisors is an integer number (544864320).

Almost surely, 2^16704143890 is an apocalyptic number.

16704143890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16704143890 is an abundant number, since it is smaller than the sum of its proper divisors (18167172590).

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

16704143890 is a wasteful number, since it uses less digits than its factorization.

16704143890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 16704143890 in words is "sixteen billion, seven hundred four million, one hundred forty-three thousand, eight hundred ninety".