11578687036081 has 16 divisors (see below), whose sum is σ = 12669642311040. Its totient is φ = 10494142974720.

The previous prime is 11578687036043. The next prime is 11578687036097. The reversal of 11578687036081 is 18063078687511.

It is a cyclic number.

It is not a de Polignac number, because 11578687036081 - 2¹⁹ = 11578686511793 is a prime.

It is a super-2 number, since 2×11578687036081² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11578687034081) 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, 11125740 + ... + 12121858.

It is an arithmetic number, because the mean of its divisors is an integer number (791852644440).

Almost surely, 2^{11578687036081} is an apocalyptic number.

11578687036081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11578687036081 is a deficient number, since it is larger than the sum of its proper divisors (1090955274959).

11578687036081 is a wasteful number, since it uses less digits than its factorization.

11578687036081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999336.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 11578687036081 in words is "eleven trillion, five hundred seventy-eight billion, six hundred eighty-seven million, thirty-six thousand, eighty-one".