16752778432 has 224 divisors, whose sum is σ = 38113435584. Its totient is φ = 7254835200.

The previous prime is 16752778429. The next prime is 16752778481. The reversal of 16752778432 is 23487725761.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 16752778432.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172709008 + ... + 172709104.

It is an arithmetic number, because the mean of its divisors is an integer number (170149266).

Almost surely, 2^16752778432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16752778432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19056717792).

16752778432 is an abundant number, since it is smaller than the sum of its proper divisors (21360657152).

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

16752778432 is a wasteful number, since it uses less digits than its factorization.

16752778432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 297 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 52.

The spelling of 16752778432 in words is "sixteen billion, seven hundred fifty-two million, seven hundred seventy-eight thousand, four hundred thirty-two".