11621873060565 has 16 divisors (see below), whose sum is σ = 18622626923328. Its totient is φ = 6189122290176.

The previous prime is 11621873060533. The next prime is 11621873060573. The reversal of 11621873060565 is 56506037812611.

It is not a de Polignac number, because 11621873060565 - 2⁵ = 11621873060533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575615119 + ... + 575635308.

It is an arithmetic number, because the mean of its divisors is an integer number (1163914182708).

Almost surely, 2^{11621873060565} is an apocalyptic number.

11621873060565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11621873060565 is a deficient number, since it is larger than the sum of its proper divisors (7000753862763).

11621873060565 is a wasteful number, since it uses less digits than its factorization.

11621873060565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151251108.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 11621873060565 in words is "eleven trillion, six hundred twenty-one billion, eight hundred seventy-three million, sixty thousand, five hundred sixty-five".