40436066650 has 36 divisors (see below), whose sum is σ = 87490449918. Its totient is φ = 13863793440.

The previous prime is 40436066581. The next prime is 40436066651. The reversal of 40436066650 is 5666063404.

40436066650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 37752101401 + 2683965249 = 194299^2 + 51807^2 .

It is a super-2 number, since 2×40436066650² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40436066651) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8249809 + ... + 8254708.

Almost surely, 2^40436066650 is an apocalyptic number.

40436066650 is an abundant number, since it is smaller than the sum of its proper divisors (47054383268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40436066650 is a wasteful number, since it uses less digits than its factorization.

40436066650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16504543 (or 16504531 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 40436066650 in words is "forty billion, four hundred thirty-six million, sixty-six thousand, six hundred fifty".