16621452010 has 16 divisors (see below), whose sum is σ = 29929476096. Its totient is φ = 6646166928.

The previous prime is 16621451999. The next prime is 16621452037. The reversal of 16621452010 is 1025412661.

It is a self number, because there is not a number n which added to its sum of digits gives 16621452010.

It is an unprimeable number.

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, 272682 + ... + 328021.

It is an arithmetic number, because the mean of its divisors is an integer number (1870592256).

Almost surely, 2^16621452010 is an apocalyptic number.

16621452010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16621452010 is a deficient number, since it is larger than the sum of its proper divisors (13308024086).

16621452010 is a wasteful number, since it uses less digits than its factorization.

16621452010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603477.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 16621452010 its reverse (1025412661), we get a palindrome (17646864671).

The spelling of 16621452010 in words is "sixteen billion, six hundred twenty-one million, four hundred fifty-two thousand, ten".