16143201536 has 144 divisors (see below), whose sum is σ = 40569704448. Its totient is φ = 6227712000.

The previous prime is 16143201533. The next prime is 16143201587. The reversal of 16143201536 is 63510234161.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16143201533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2026361 + ... + 2034311.

Almost surely, 2^16143201536 is an apocalyptic number.

16143201536 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 16143201536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20284852224).

16143201536 is an abundant number, since it is smaller than the sum of its proper divisors (24426502912).

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

16143201536 is a wasteful number, since it uses less digits than its factorization.

16143201536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088 (or 8074 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 16143201536 its reverse (63510234161), we get a palindrome (79653435697).

The spelling of 16143201536 in words is "sixteen billion, one hundred forty-three million, two hundred one thousand, five hundred thirty-six".