16619582112 has 384 divisors, whose sum is σ = 54706176000. Its totient is φ = 4311014400.

The previous prime is 16619582099. The next prime is 16619582123. The reversal of 16619582112 is 21128591661.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (51840) is a multiple of the sum of its prime factors (480).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78765687 + ... + 78765897.

It is an arithmetic number, because the mean of its divisors is an integer number (142464000).

Almost surely, 2^16619582112 is an apocalyptic number.

16619582112 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 16619582112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27353088000).

16619582112 is an abundant number, since it is smaller than the sum of its proper divisors (38086593888).

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

16619582112 is a wasteful number, since it uses less digits than its factorization.

16619582112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 472 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The spelling of 16619582112 in words is "sixteen billion, six hundred nineteen million, five hundred eighty-two thousand, one hundred twelve".