16950621500 has 96 divisors (see below), whose sum is σ = 38221799616. Its totient is φ = 6563020800.

The previous prime is 16950621473. The next prime is 16950621521. The reversal of 16950621500 is 512605961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2426012 + ... + 2432988.

It is an arithmetic number, because the mean of its divisors is an integer number (398143746).

Almost surely, 2^16950621500 is an apocalyptic number.

16950621500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16950621500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19110899808).

16950621500 is an abundant number, since it is smaller than the sum of its proper divisors (21271178116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16950621500 is a wasteful number, since it uses less digits than its factorization.

16950621500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152 (or 7140 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 16950621500 in words is "sixteen billion, nine hundred fifty million, six hundred twenty-one thousand, five hundred".