40256665130 has 64 divisors (see below), whose sum is σ = 82055462400. Its totient is φ = 14092339200.

The previous prime is 40256665061. The next prime is 40256665139. The reversal of 40256665130 is 3156665204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40256665139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251546 + ... + 379194.

It is an arithmetic number, because the mean of its divisors is an integer number (1282116600).

Almost surely, 2^40256665130 is an apocalyptic number.

40256665130 is an abundant number, since it is smaller than the sum of its proper divisors (41798797270).

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

40256665130 is a wasteful number, since it uses less digits than its factorization.

40256665130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127775.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 40256665130 in words is "forty billion, two hundred fifty-six million, six hundred sixty-five thousand, one hundred thirty".