40451553266 has 4 divisors (see below), whose sum is σ = 60677329902. Its totient is φ = 20225776632.

The previous prime is 40451553239. The next prime is 40451553319. The reversal of 40451553266 is 66235515404.

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., 39547288225 + 904265041 = 198865^2 + 30071^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112888315 + ... + 10112888318.

Almost surely, 2^40451553266 is an apocalyptic number.

40451553266 is a deficient number, since it is larger than the sum of its proper divisors (20225776636).

40451553266 is a wasteful number, since it uses less digits than its factorization.

40451553266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20225776635.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 40451553266 in words is "forty billion, four hundred fifty-one million, five hundred fifty-three thousand, two hundred sixty-six".