16869995234640 has 960 divisors, whose sum is σ = 62306274643200. Its totient is φ = 4193524887552.

The previous prime is 16869995234633. The next prime is 16869995234717. The reversal of 16869995234640 is 4643259996861.

16869995234640 is a `hidden beast` number, since 1 + 6 + 8 + 6 + 9 + 99 + 523 + 4 + 6 + 4 + 0 = 666.

16869995234640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9871266106 + ... + 9871267814.

It is an arithmetic number, because the mean of its divisors is an integer number (64902369420).

Almost surely, 2^{16869995234640} is an apocalyptic number.

16869995234640 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 16869995234640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31153137321600).

16869995234640 is an abundant number, since it is smaller than the sum of its proper divisors (45436279408560).

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

16869995234640 is a wasteful number, since it uses less digits than its factorization.

16869995234640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 72.

The spelling of 16869995234640 in words is "sixteen trillion, eight hundred sixty-nine billion, nine hundred ninety-five million, two hundred thirty-four thousand, six hundred forty".