40413656266 has 16 divisors (see below), whose sum is σ = 66399720840. Its totient is φ = 18362391040.

The previous prime is 40413656221. The next prime is 40413656287. The reversal of 40413656266 is 66265631404.

It can be written as a sum of positive squares in 4 ways, for example, as 28721775625 + 11691880641 = 169475^2 + 108129^2 .

It is a super-2 number, since 2×40413656266² (a number of 22 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 20492755 + ... + 20494726.

Almost surely, 2^40413656266 is an apocalyptic number.

40413656266 is a deficient number, since it is larger than the sum of its proper divisors (25986064574).

40413656266 is a wasteful number, since it uses less digits than its factorization.

40413656266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40987529.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 40413656266 in words is "forty billion, four hundred thirteen million, six hundred fifty-six thousand, two hundred sixty-six".