16001126522890 has 8 divisors (see below), whose sum is σ = 28802027741220. Its totient is φ = 6400450609152.

The previous prime is 16001126522873. The next prime is 16001126522911. The reversal of 16001126522890 is 9822562110061.

It can be written as a sum of positive squares in 2 ways, for example, as 14246903093049 + 1754223429841 = 3774507^2 + 1324471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800056326135 + ... + 800056326154.

Almost surely, 2^{16001126522890} is an apocalyptic number.

16001126522890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16001126522890 is a deficient number, since it is larger than the sum of its proper divisors (12800901218330).

16001126522890 is a wasteful number, since it uses less digits than its factorization.

16001126522890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600112652296.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 16001126522890 in words is "sixteen trillion, one billion, one hundred twenty-six million, five hundred twenty-two thousand, eight hundred ninety".