206191446912 has 128 divisors (see below), whose sum is σ = 663874099200. Its totient is φ = 62482245120.

The previous prime is 206191446889. The next prime is 206191446913. The reversal of 206191446912 is 219644191602.

206191446912 is a `hidden beast` number, since 2 + 0 + 6 + 191 + 446 + 9 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×206191446912² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206191446913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673888 + ... + 2749919.

It is an arithmetic number, because the mean of its divisors is an integer number (5186516400).

Almost surely, 2^206191446912 is an apocalyptic number.

206191446912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206191446912 is an abundant number, since it is smaller than the sum of its proper divisors (457682652288).

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

206191446912 is a wasteful number, since it uses less digits than its factorization.

206191446912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423841 (or 5423823 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 206191446912 in words is "two hundred six billion, one hundred ninety-one million, four hundred forty-six thousand, nine hundred twelve".