106331981780 has 12 divisors (see below), whose sum is σ = 223297161780. Its totient is φ = 42532792704.

The previous prime is 106331981779. The next prime is 106331981783. The reversal of 106331981780 is 87189133601.

It can be written as a sum of positive squares in 2 ways, for example, as 66317580484 + 40014401296 = 257522^2 + 200036^2 .

It is a super-2 number, since 2×106331981780² (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 (106331981783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2658299525 + ... + 2658299564.

It is an arithmetic number, because the mean of its divisors is an integer number (18608096815).

Almost surely, 2^106331981780 is an apocalyptic number.

106331981780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106331981780 is an abundant number, since it is smaller than the sum of its proper divisors (116965180000).

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

106331981780 is a wasteful number, since it uses less digits than its factorization.

106331981780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316599098 (or 5316599096 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 106331981780 in words is "one hundred six billion, three hundred thirty-one million, nine hundred eighty-one thousand, seven hundred eighty".