16621443117150 has 48 divisors (see below), whose sum is σ = 41225374715184. Its totient is φ = 4431933671680.

The previous prime is 16621443117121. The next prime is 16621443117157. The reversal of 16621443117150 is 5171134412661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16621443117157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4159629 + ... + 7109528.

It is an arithmetic number, because the mean of its divisors is an integer number (858861973233).

Almost surely, 2^{16621443117150} is an apocalyptic number.

16621443117150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16621443117150 is an abundant number, since it is smaller than the sum of its proper divisors (24603931598034).

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

16621443117150 is a wasteful number, since it uses less digits than its factorization.

16621443117150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279005 (or 11279000 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 16621443117150 in words is "sixteen trillion, six hundred twenty-one billion, four hundred forty-three million, one hundred seventeen thousand, one hundred fifty".