543543616 has 168 divisors, whose sum is σ = 1396683008. Its totient is φ = 205286400.

The previous prime is 543543589. The next prime is 543543631. The reversal of 543543616 is 616345345.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2005561 + ... + 2005831.

Almost surely, 2^543543616 is an apocalyptic number.

543543616 is a gapful number since it is divisible by the number (56) 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 543543616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698341504).

543543616 is an abundant number, since it is smaller than the sum of its proper divisors (853139392).

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

543543616 is a wasteful number, since it uses less digits than its factorization.

543543616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 328 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 543543616 is about 23314.0218752578. The cubic root of 543543616 is about 816.1026719457.

It can be divided in two parts, 54354 and 3616, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 543543616 in words is "five hundred forty-three million, five hundred forty-three thousand, six hundred sixteen".