16431650543136 has 384 divisors, whose sum is σ = 49052981859840. Its totient is φ = 4786945523712.

The previous prime is 16431650543131. The next prime is 16431650543149. The reversal of 16431650543136 is 63134505613461.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16431650543131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 634683280 + ... + 634709168.

It is an arithmetic number, because the mean of its divisors is an integer number (127742140260).

Almost surely, 2^{16431650543136} is an apocalyptic number.

16431650543136 is a gapful number since it is divisible by the number (16) 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 16431650543136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24526490929920).

16431650543136 is an abundant number, since it is smaller than the sum of its proper divisors (32621331316704).

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

16431650543136 is a wasteful number, since it uses less digits than its factorization.

16431650543136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26436 (or 26428 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 16431650543136 in words is "sixteen trillion, four hundred thirty-one billion, six hundred fifty million, five hundred forty-three thousand, one hundred thirty-six".