40046561266 has 4 divisors (see below), whose sum is σ = 60069841902. Its totient is φ = 20023280632.

The previous prime is 40046561239. The next prime is 40046561273. The reversal of 40046561266 is 66216564004.

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., 33990453225 + 6056108041 = 184365^2 + 77821^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10011640315 + ... + 10011640318.

Almost surely, 2^40046561266 is an apocalyptic number.

40046561266 is a deficient number, since it is larger than the sum of its proper divisors (20023280636).

40046561266 is a wasteful number, since it uses less digits than its factorization.

40046561266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20023280635.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 40046561266 in words is "forty billion, forty-six million, five hundred sixty-one thousand, two hundred sixty-six".