16047936840 has 128 divisors (see below), whose sum is σ = 51902323200. Its totient is φ = 3946060800.

The previous prime is 16047936803. The next prime is 16047936847. The reversal of 16047936840 is 4863974061.

It is a self number, because there is not a number n which added to its sum of digits gives 16047936840.

It is not an unprimeable number, because it can be changed into a prime (16047936847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1615890 + ... + 1625790.

It is an arithmetic number, because the mean of its divisors is an integer number (405486900).

Almost surely, 2^16047936840 is an apocalyptic number.

16047936840 is a gapful number since it is divisible by the number (10) 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 16047936840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25951161600).

16047936840 is an abundant number, since it is smaller than the sum of its proper divisors (35854386360).

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

16047936840 is a wasteful number, since it uses less digits than its factorization.

16047936840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10967 (or 10963 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 16047936840 in words is "sixteen billion, forty-seven million, nine hundred thirty-six thousand, eight hundred forty".