11686550401 has 8 divisors (see below), whose sum is σ = 12204710784. Its totient is φ = 11169227520.

The previous prime is 11686550357. The next prime is 11686550411. The reversal of 11686550401 is 10405568611.

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-11686550401 is a prime.

It is a super-2 number, since 2×11686550401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11686550411) 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, 180765 + ... + 236746.

It is an arithmetic number, because the mean of its divisors is an integer number (1525588848).

Almost surely, 2^11686550401 is an apocalyptic number.

It is an amenable number.

11686550401 is a deficient number, since it is larger than the sum of its proper divisors (518160383).

11686550401 is a wasteful number, since it uses less digits than its factorization.

11686550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418751.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 11686550401 in words is "eleven billion, six hundred eighty-six million, five hundred fifty thousand, four hundred one".