16421206346 has 16 divisors (see below), whose sum is σ = 25103019744. Its totient is φ = 8053612944.

The previous prime is 16421206337. The next prime is 16421206369. The reversal of 16421206346 is 64360212461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444725 + ... + 480231.

It is an arithmetic number, because the mean of its divisors is an integer number (1568938734).

Almost surely, 2^16421206346 is an apocalyptic number.

16421206346 is a deficient number, since it is larger than the sum of its proper divisors (8681813398).

16421206346 is a wasteful number, since it uses less digits than its factorization.

16421206346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39925.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 16421206346 in words is "sixteen billion, four hundred twenty-one million, two hundred six thousand, three hundred forty-six".