905081140066 has 8 divisors (see below), whose sum is σ = 1357869603420. Its totient is φ = 452457938928.

The previous prime is 905081140057. The next prime is 905081140069. The reversal of 905081140066 is 660041180509.

It can be written as a sum of positive squares in 2 ways, for example, as 553864896841 + 351216243225 = 744221^2 + 592635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (905081140069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41301861 + ... + 41323768.

Almost surely, 2^905081140066 is an apocalyptic number.

905081140066 is a deficient number, since it is larger than the sum of its proper divisors (452788463354).

905081140066 is a wasteful number, since it uses less digits than its factorization.

905081140066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82631108.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 905081140066 in words is "nine hundred five billion, eighty-one million, one hundred forty thousand, sixty-six".