16447612202240 has 144 divisors (see below), whose sum is σ = 40757318359632. Its totient is φ = 6354506022912.

The previous prime is 16447612202239. The next prime is 16447612202243. The reversal of 16447612202240 is 4220221674461.

It can be written as a sum of positive squares in 8 ways, for example, as 632164927744 + 15815447274496 = 795088^2 + 3976864^2 .

It is a super-2 number, since 2×16447612202240² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447612202243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5220842 + ... + 7755798.

It is an arithmetic number, because the mean of its divisors is an integer number (283036933053).

Almost surely, 2^{16447612202240} is an apocalyptic number.

16447612202240 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 16447612202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20378659179816).

16447612202240 is an abundant number, since it is smaller than the sum of its proper divisors (24309706157392).

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

16447612202240 is a wasteful number, since it uses less digits than its factorization.

16447612202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535152 (or 2535138 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 16447612202240 in words is "sixteen trillion, four hundred forty-seven billion, six hundred twelve million, two hundred two thousand, two hundred forty".