16443537225020 has 48 divisors (see below), whose sum is σ = 35494318480320. Its totient is φ = 6396203713536.

The previous prime is 16443537224981. The next prime is 16443537225041. The reversal of 16443537225020 is 2052273534461.

It is a super-3 number, since 3×16443537225020³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68520800 + ... + 68760359.

It is an arithmetic number, because the mean of its divisors is an integer number (739464968340).

Almost surely, 2^{16443537225020} is an apocalyptic number.

16443537225020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16443537225020 is an abundant number, since it is smaller than the sum of its proper divisors (19050781255300).

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

16443537225020 is a wasteful number, since it uses less digits than its factorization.

16443537225020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137281334 (or 137281332 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 16443537225020 in words is "sixteen trillion, four hundred forty-three billion, five hundred thirty-seven million, two hundred twenty-five thousand, twenty".