206562100440 has 64 divisors (see below), whose sum is σ = 625477800960. Its totient is φ = 54568426880.

The previous prime is 206562100403. The next prime is 206562100441. The reversal of 206562100440 is 44001265602.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 206562100398 and 206562100407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206562100441) 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, 8030856 + ... + 8056535.

It is an arithmetic number, because the mean of its divisors is an integer number (9773090640).

Almost surely, 2^206562100440 is an apocalyptic number.

206562100440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206562100440 is an abundant number, since it is smaller than the sum of its proper divisors (418915700520).

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

206562100440 is a wasteful number, since it uses less digits than its factorization.

206562100440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16087512 (or 16087508 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 206562100440 in words is "two hundred six billion, five hundred sixty-two million, one hundred thousand, four hundred forty".