16667750043252 has 432 divisors, whose sum is σ = 55507491224640. Its totient is φ = 4324557081600.

The previous prime is 16667750043211. The next prime is 16667750043289. The reversal of 16667750043252 is 25234005776661.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 492980524 + ... + 493014332.

It is an arithmetic number, because the mean of its divisors is an integer number (128489563020).

Almost surely, 2^{16667750043252} is an apocalyptic number.

16667750043252 is a gapful number since it is divisible by the number (12) 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 16667750043252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27753745612320).

16667750043252 is an abundant number, since it is smaller than the sum of its proper divisors (38839741181388).

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

16667750043252 is a wasteful number, since it uses less digits than its factorization.

16667750043252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34794 (or 34773 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 16667750043252 in words is "sixteen trillion, six hundred sixty-seven billion, seven hundred fifty million, forty-three thousand, two hundred fifty-two".