16213545216 has 108 divisors (see below), whose sum is σ = 50997513840. Its totient is φ = 4913187840.

The previous prime is 16213545211. The next prime is 16213545233. The reversal of 16213545216 is 61254531261.

16213545216 is a `hidden beast` number, since 1 + 62 + 135 + 452 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16213545211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294526 + ... + 345213.

Almost surely, 2^16213545216 is an apocalyptic number.

16213545216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16213545216 is an abundant number, since it is smaller than the sum of its proper divisors (34783968624).

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

16213545216 is a wasteful number, since it uses less digits than its factorization.

16213545216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639772 (or 639755 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 16213545216 in words is "sixteen billion, two hundred thirteen million, five hundred forty-five thousand, two hundred sixteen".