40893161066 has 4 divisors (see below), whose sum is σ = 61339741602. Its totient is φ = 20446580532.

The previous prime is 40893161063. The next prime is 40893161077. The reversal of 40893161066 is 66016139804.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36107980441 + 4785180625 = 190021^2 + 69175^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40893161063) 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 as a sum of consecutive naturals, namely, 10223290265 + ... + 10223290268.

Almost surely, 2^40893161066 is an apocalyptic number.

40893161066 is a deficient number, since it is larger than the sum of its proper divisors (20446580536).

40893161066 is a wasteful number, since it uses less digits than its factorization.

40893161066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446580535.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 40893161066 in words is "forty billion, eight hundred ninety-three million, one hundred sixty-one thousand, sixty-six".