16619864832 has 432 divisors, whose sum is σ = 53637176320. Its totient is φ = 4926873600.

The previous prime is 16619864831. The next prime is 16619864857. The reversal of 16619864832 is 23846891661.

16619864832 is a `hidden beast` number, since 16 + 61 + 98 + 6 + 483 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (16619864831) 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, 50210907 + ... + 50211237.

Almost surely, 2^16619864832 is an apocalyptic number.

16619864832 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 16619864832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26818588160).

16619864832 is an abundant number, since it is smaller than the sum of its proper divisors (37017311488).

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

16619864832 is a wasteful number, since it uses less digits than its factorization.

16619864832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 423 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 16619864832 in words is "sixteen billion, six hundred nineteen million, eight hundred sixty-four thousand, eight hundred thirty-two".