16849216805220 has 96 divisors (see below), whose sum is σ = 52427310566400. Its totient is φ = 4492479485952.

The previous prime is 16849216805207. The next prime is 16849216805233. The reversal of 16849216805220 is 2250861294861.

16849216805220 is a `hidden beast` number, since 1 + 6 + 8 + 492 + 1 + 6 + 80 + 52 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (16849216805207) and next prime (16849216805233).

It is a super-2 number, since 2×16849216805220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1531501 + ... + 6003659.

It is an arithmetic number, because the mean of its divisors is an integer number (546117818400).

Almost surely, 2^{16849216805220} is an apocalyptic number.

16849216805220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16849216805220 is an abundant number, since it is smaller than the sum of its proper divisors (35578093761180).

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

16849216805220 is a wasteful number, since it uses less digits than its factorization.

16849216805220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479154 (or 4479146 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 16849216805220 in words is "sixteen trillion, eight hundred forty-nine billion, two hundred sixteen million, eight hundred five thousand, two hundred twenty".