16839455040 has 448 divisors, whose sum is σ = 61228224000. Its totient is φ = 4355112960.

The previous prime is 16839454981. The next prime is 16839455041. The reversal of 16839455040 is 4055493861.

16839455040 is a `hidden beast` number, since 1 + 6 + 8 + 3 + 94 + 550 + 4 + 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 (16839455041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46906381 + ... + 46906739.

Almost surely, 2^16839455040 is an apocalyptic number.

16839455040 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 16839455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30614112000).

16839455040 is an abundant number, since it is smaller than the sum of its proper divisors (44388768960).

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

16839455040 is a wasteful number, since it uses less digits than its factorization.

16839455040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 16839455040 in words is "sixteen billion, eight hundred thirty-nine million, four hundred fifty-five thousand, forty".