16623201250 has 20 divisors (see below), whose sum is σ = 31158530766. Its totient is φ = 6649280000.

The previous prime is 16623201223. The next prime is 16623201293. The reversal of 16623201250 is 5210232661.

It can be written as a sum of positive squares in 5 ways, for example, as 225630441 + 16397570809 = 15021^2 + 128053^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6648031 + ... + 6650530.

Almost surely, 2^16623201250 is an apocalyptic number.

16623201250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16623201250 is a deficient number, since it is larger than the sum of its proper divisors (14535329516).

16623201250 is an equidigital number, since it uses as much as digits as its factorization.

16623201250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13298583 (or 13298568 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 16623201250 in words is "sixteen billion, six hundred twenty-three million, two hundred one thousand, two hundred fifty".