186226065440 has 48 divisors (see below), whose sum is σ = 440077480920. Its totient is φ = 74470379520.

The previous prime is 186226065407. The next prime is 186226065449. The reversal of 186226065440 is 44560622681.

It can be written as a sum of positive squares in 4 ways, for example, as 181111527184 + 5114538256 = 425572^2 + 71516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 186226065391 and 186226065400.

It is not an unprimeable number, because it can be changed into a prime (186226065449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447026 + ... + 756494.

Almost surely, 2^186226065440 is an apocalyptic number.

186226065440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186226065440 is an abundant number, since it is smaller than the sum of its proper divisors (253851415480).

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

186226065440 is a wasteful number, since it uses less digits than its factorization.

186226065440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313245 (or 313237 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 186226065440 in words is "one hundred eighty-six billion, two hundred twenty-six million, sixty-five thousand, four hundred forty".