541555603643 has 4 divisors (see below), whose sum is σ = 573411815640. Its totient is φ = 509699391648.

The previous prime is 541555603637. The next prime is 541555603663. The reversal of 541555603643 is 346306555145.

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

It is a cyclic number.

It is not a de Polignac number, because 541555603643 - 2¹⁰ = 541555602619 is a prime.

It is a super-2 number, since 2×541555603643² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541555603663) 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, 15928105973 + ... + 15928106006.

It is an arithmetic number, because the mean of its divisors is an integer number (143352953910).

Almost surely, 2^541555603643 is an apocalyptic number.

541555603643 is a deficient number, since it is larger than the sum of its proper divisors (31856211997).

541555603643 is a wasteful number, since it uses less digits than its factorization.

541555603643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31856211996.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 541555603643 in words is "five hundred forty-one billion, five hundred fifty-five million, six hundred three thousand, six hundred forty-three".