16021435297090 has 16 divisors (see below), whose sum is σ = 28868101038072. Its totient is φ = 6402014673664.

The previous prime is 16021435297067. The next prime is 16021435297093. The reversal of 16021435297090 is 9079253412061.

It can be written as a sum of positive squares in 4 ways, for example, as 15761876635129 + 259558661961 = 3970123^2 + 509469^2 .

It is not an unprimeable number, because it can be changed into a prime (16021435297093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819920389 + ... + 819939928.

Almost surely, 2^{16021435297090} is an apocalyptic number.

16021435297090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16021435297090 is a deficient number, since it is larger than the sum of its proper divisors (12846665740982).

16021435297090 is a wasteful number, since it uses less digits than its factorization.

16021435297090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639861301.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 16021435297090 in words is "sixteen trillion, twenty-one billion, four hundred thirty-five million, two hundred ninety-seven thousand, ninety".