16800000890 has 16 divisors (see below), whose sum is σ = 30250295208. Its totient is φ = 6717712896.

The previous prime is 16800000871. The next prime is 16800000913. The reversal of 16800000890 is 9800000861.

It can be written as a sum of positive squares in 4 ways, for example, as 16785016249 + 14984641 = 129557^2 + 3871^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254927 + ... + 313986.

Almost surely, 2^16800000890 is an apocalyptic number.

16800000890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16800000890 is a deficient number, since it is larger than the sum of its proper divisors (13450294318).

16800000890 is a wasteful number, since it uses less digits than its factorization.

16800000890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571873.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 16800000890 in words is "sixteen billion, eight hundred million, eight hundred ninety", and thus it is an aban number.