16550532432 has 180 divisors, whose sum is σ = 53965218996. Its totient is φ = 4721310720.

The previous prime is 16550532413. The next prime is 16550532437. The reversal of 16550532432 is 23423505561.

16550532432 is a `hidden beast` number, since 1 + 6 + 550 + 53 + 24 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7794064656 + 8756467776 = 88284^2 + 93576^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550532437) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5791548 + ... + 5794404.

Almost surely, 2^16550532432 is an apocalyptic number.

16550532432 is a gapful number since it is divisible by the number (12) 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 16550532432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26982609498).

16550532432 is an abundant number, since it is smaller than the sum of its proper divisors (37414686564).

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

16550532432 is a wasteful number, since it uses less digits than its factorization.

16550532432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706 (or 3690 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 16550532432 in words is "sixteen billion, five hundred fifty million, five hundred thirty-two thousand, four hundred thirty-two".