40656660455443 has 8 divisors (see below), whose sum is σ = 42798040966800. Its totient is φ = 38515435571808.

The previous prime is 40656660455413. The next prime is 40656660455459. The reversal of 40656660455443 is 34455406665604.

40656660455443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40656660455443 - 2³³ = 40648070520851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40656660455413) 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 7 ways as a sum of consecutive naturals, for example, 38370496 + ... + 39415837.

It is an arithmetic number, because the mean of its divisors is an integer number (5349755120850).

Almost surely, 2^{40656660455443} is an apocalyptic number.

40656660455443 is a deficient number, since it is larger than the sum of its proper divisors (2141380511357).

40656660455443 is a wasteful number, since it uses less digits than its factorization.

40656660455443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77813861.

The product of its (nonzero) digits is 124416000, while the sum is 58.

The spelling of 40656660455443 in words is "forty trillion, six hundred fifty-six billion, six hundred sixty million, four hundred fifty-five thousand, four hundred forty-three".