4161540243503 has 16 divisors (see below), whose sum is σ = 4310830692000. Its totient is φ = 4012638389760.

The previous prime is 4161540243467. The next prime is 4161540243517. The reversal of 4161540243503 is 3053420451614.

It is a cyclic number.

It is not a de Polignac number, because 4161540243503 - 2¹⁶ = 4161540177967 is a prime.

It is a super-2 number, since 2×4161540243503² (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 (4161540243593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96648323 + ... + 96691371.

It is an arithmetic number, because the mean of its divisors is an integer number (269426918250).

Almost surely, 2^{4161540243503} is an apocalyptic number.

4161540243503 is a deficient number, since it is larger than the sum of its proper divisors (149290448497).

4161540243503 is a wasteful number, since it uses less digits than its factorization.

4161540243503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47482.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 4161540243503 in words is "four trillion, one hundred sixty-one billion, five hundred forty million, two hundred forty-three thousand, five hundred three".