16243750481400 has 1536 divisors, whose sum is σ = 64990577836800. Its totient is φ = 3739765800960.

The previous prime is 16243750481363. The next prime is 16243750481401. The reversal of 16243750481400 is 418405734261.

16243750481400 is a `hidden beast` number, since 1 + 6 + 24 + 3 + 7 + 504 + 81 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16243750481401) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 19043083374 + ... + 19043084226.

Almost surely, 2^{16243750481400} is an apocalyptic number.

16243750481400 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 16243750481400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32495288918400).

16243750481400 is an abundant number, since it is smaller than the sum of its proper divisors (48746827355400).

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

16243750481400 is a wasteful number, since it uses less digits than its factorization.

16243750481400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 16243750481400 in words is "sixteen trillion, two hundred forty-three billion, seven hundred fifty million, four hundred eighty-one thousand, four hundred".