4018366440653 has 4 divisors (see below), whose sum is σ = 4254740937180. Its totient is φ = 3781991944128.

The previous prime is 4018366440623. The next prime is 4018366440709. The reversal of 4018366440653 is 3560446638104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3534148084489 + 484218356164 = 1879933^2 + 695858^2 .

It is a cyclic number.

It is not a de Polignac number, because 4018366440653 - 2²⁸ = 4018098005197 is a prime.

It is a super-2 number, since 2×4018366440653² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018366440623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118187248238 + ... + 118187248271.

It is an arithmetic number, because the mean of its divisors is an integer number (1063685234295).

Almost surely, 2^{4018366440653} is an apocalyptic number.

It is an amenable number.

4018366440653 is a deficient number, since it is larger than the sum of its proper divisors (236374496527).

4018366440653 is a wasteful number, since it uses less digits than its factorization.

4018366440653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236374496526.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 4018366440653 in words is "four trillion, eighteen billion, three hundred sixty-six million, four hundred forty thousand, six hundred fifty-three".