16146543504 has 240 divisors, whose sum is σ = 52442976768. Its totient is φ = 4243083264.

The previous prime is 16146543503. The next prime is 16146543521. The reversal of 16146543504 is 40534564161.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (16146543503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10303329 + ... + 10304895.

Almost surely, 2^16146543504 is an apocalyptic number.

16146543504 is a gapful number since it is divisible by the number (14) 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 16146543504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26221488384).

16146543504 is an abundant number, since it is smaller than the sum of its proper divisors (36296433264).

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

16146543504 is a wasteful number, since it uses less digits than its factorization.

16146543504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 16146543504 in words is "sixteen billion, one hundred forty-six million, five hundred forty-three thousand, five hundred four".