16821270802 has 16 divisors (see below), whose sum is σ = 28889779392. Its totient is φ = 7195787280.

The previous prime is 16821270773. The next prime is 16821270803. The reversal of 16821270802 is 20807212861.

It is not an unprimeable number, because it can be changed into a prime (16821270803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102888 + ... + 1118035.

It is an arithmetic number, because the mean of its divisors is an integer number (1805611212).

Almost surely, 2^16821270802 is an apocalyptic number.

16821270802 is a deficient number, since it is larger than the sum of its proper divisors (12068508590).

16821270802 is a wasteful number, since it uses less digits than its factorization.

16821270802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221473.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 16821270802 in words is "sixteen billion, eight hundred twenty-one million, two hundred seventy thousand, eight hundred two".