16840870560 has 288 divisors, whose sum is σ = 58783076352. Its totient is φ = 4389396480.

The previous prime is 16840870513. The next prime is 16840870567. The reversal of 16840870560 is 6507804861.

It is a happy number.

16840870560 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 0 + 87 + 0 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×16840870560² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (16840870567) 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, 12983832 + ... + 12985128.

It is an arithmetic number, because the mean of its divisors is an integer number (204107904).

Almost surely, 2^16840870560 is an apocalyptic number.

16840870560 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 16840870560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29391538176).

16840870560 is an abundant number, since it is smaller than the sum of its proper divisors (41942205792).

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

16840870560 is a wasteful number, since it uses less digits than its factorization.

16840870560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 16840870560 in words is "sixteen billion, eight hundred forty million, eight hundred seventy thousand, five hundred sixty".