206422323140 has 48 divisors (see below), whose sum is σ = 472926432384. Its totient is φ = 75057638400.

The previous prime is 206422323109. The next prime is 206422323167. The reversal of 206422323140 is 41323224602.

It is a happy number.

It is a super-2 number, since 2×206422323140² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5366657 + ... + 5404983.

It is an arithmetic number, because the mean of its divisors is an integer number (9852634008).

Almost surely, 2^206422323140 is an apocalyptic number.

206422323140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206422323140 is an abundant number, since it is smaller than the sum of its proper divisors (266504109244).

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

206422323140 is a wasteful number, since it uses less digits than its factorization.

206422323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62828 (or 62826 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 206422323140 its reverse (41323224602), we get a palindrome (247745547742).

The spelling of 206422323140 in words is "two hundred six billion, four hundred twenty-two million, three hundred twenty-three thousand, one hundred forty".