16238866426488 has 24 divisors (see below), whose sum is σ = 43980263238600. Its totient is φ = 5412955475472.

The previous prime is 16238866426487. The next prime is 16238866426529. The reversal of 16238866426488 is 88462466883261.

16238866426488 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 8 + 86 + 64 + 2 + 6 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (72), and also a Moran number because the ratio is a prime number: 225539811479 = 16238866426488 / (1 + 6 + 2 + 3 + 8 + 8 + 6 + 6 + 4 + 2 + 6 + 4 + 8 + 8).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16238866426483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112769905668 + ... + 112769905811.

It is an arithmetic number, because the mean of its divisors is an integer number (1832510968275).

Almost surely, 2^{16238866426488} is an apocalyptic number.

16238866426488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16238866426488 is an abundant number, since it is smaller than the sum of its proper divisors (27741396812112).

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

16238866426488 is a wasteful number, since it uses less digits than its factorization.

16238866426488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225539811491 (or 225539811484 counting only the distinct ones).

The product of its digits is 1019215872, while the sum is 72.

The spelling of 16238866426488 in words is "sixteen trillion, two hundred thirty-eight billion, eight hundred sixty-six million, four hundred twenty-six thousand, four hundred eighty-eight".