11621545305541 has 8 divisors (see below), whose sum is σ = 12351974573120. Its totient is φ = 10902992936832.

The previous prime is 11621545305457. The next prime is 11621545305571. The reversal of 11621545305541 is 14550354512611.

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 11621545305541 - 2⁷ = 11621545305413 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 (11621545305571) 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, 2969222700 + ... + 2969226613.

It is an arithmetic number, because the mean of its divisors is an integer number (1543996821640).

Almost surely, 2^{11621545305541} is an apocalyptic number.

It is an amenable number.

11621545305541 is a deficient number, since it is larger than the sum of its proper divisors (730429267579).

11621545305541 is a wasteful number, since it uses less digits than its factorization.

11621545305541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938449435.

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 11621545305541 in words is "eleven trillion, six hundred twenty-one billion, five hundred forty-five million, three hundred five thousand, five hundred forty-one".