16113968280 has 160 divisors (see below), whose sum is σ = 54588695040. Its totient is φ = 4263114240.

The previous prime is 16113968219. The next prime is 16113968281. The reversal of 16113968280 is 8286931161.

16113968280 is a `hidden beast` number, since 1 + 611 + 3 + 9 + 6 + 8 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16113968281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 391900 + ... + 431060.

It is an arithmetic number, because the mean of its divisors is an integer number (341179344).

Almost surely, 2^16113968280 is an apocalyptic number.

16113968280 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 16113968280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27294347520).

16113968280 is an abundant number, since it is smaller than the sum of its proper divisors (38474726760).

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

16113968280 is a wasteful number, since it uses less digits than its factorization.

16113968280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39311 (or 39298 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 16113968280 in words is "sixteen billion, one hundred thirteen million, nine hundred sixty-eight thousand, two hundred eighty".