206416741420 has 72 divisors (see below), whose sum is σ = 461257784064. Its totient is φ = 77577498624.

The previous prime is 206416741409. The next prime is 206416741441. The reversal of 206416741420 is 24147614602.

It is a super-2 number, since 2×206416741420² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206416741420.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3397429 + ... + 3457651.

It is an arithmetic number, because the mean of its divisors is an integer number (6406358112).

Almost surely, 2^206416741420 is an apocalyptic number.

206416741420 is a gapful number since it is divisible by the number (20) 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 206416741420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230628892032).

206416741420 is an abundant number, since it is smaller than the sum of its proper divisors (254841042644).

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

206416741420 is a wasteful number, since it uses less digits than its factorization.

206416741420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60859 (or 60840 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 206416741420 in words is "two hundred six billion, four hundred sixteen million, seven hundred forty-one thousand, four hundred twenty".