541001660621 has 8 divisors (see below), whose sum is σ = 546269181120. Its totient is φ = 535734430272.

The previous prime is 541001660603. The next prime is 541001660627. The reversal of 541001660621 is 126066100145.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541001660621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541001660627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7291850 + ... + 7365668.

It is an arithmetic number, because the mean of its divisors is an integer number (68283647640).

Almost surely, 2^541001660621 is an apocalyptic number.

It is an amenable number.

541001660621 is a deficient number, since it is larger than the sum of its proper divisors (5267520499).

541001660621 is a wasteful number, since it uses less digits than its factorization.

541001660621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145075.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 541001660621 its reverse (126066100145), we get a palindrome (667067760766).

The spelling of 541001660621 in words is "five hundred forty-one billion, one million, six hundred sixty thousand, six hundred twenty-one".