40660557653 has 8 divisors (see below), whose sum is σ = 43062635520. Its totient is φ = 38259622080.

The previous prime is 40660557647. The next prime is 40660557661. The reversal of 40660557653 is 35675506604.

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 40660557653 - 2²⁶ = 40593448789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40660557598 and 40660557607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40660554653) 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, 211733 + ... + 355178.

It is an arithmetic number, because the mean of its divisors is an integer number (5382829440).

Almost surely, 2^40660557653 is an apocalyptic number.

It is an amenable number.

40660557653 is a deficient number, since it is larger than the sum of its proper divisors (2402077867).

40660557653 is a wasteful number, since it uses less digits than its factorization.

40660557653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571147.

The product of its (nonzero) digits is 2268000, while the sum is 47.

The spelling of 40660557653 in words is "forty billion, six hundred sixty million, five hundred fifty-seven thousand, six hundred fifty-three".