16421700002 has 4 divisors (see below), whose sum is σ = 24632550006. Its totient is φ = 8210850000.

The previous prime is 16421699977. The next prime is 16421700037. The reversal of 16421700002 is 20000712461.

16421700002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20000712461 = 157 ⋅127393073.

It can be written as a sum of positive squares in only one way, i.e., 8684562481 + 7737137521 = 93191^2 + 87961^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4105424999 + ... + 4105425002.

Almost surely, 2^16421700002 is an apocalyptic number.

16421700002 is a deficient number, since it is larger than the sum of its proper divisors (8210850004).

16421700002 is an equidigital number, since it uses as much as digits as its factorization.

16421700002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8210850003.

The product of its (nonzero) digits is 672, while the sum is 23.

The spelling of 16421700002 in words is "sixteen billion, four hundred twenty-one million, seven hundred thousand, two".