11631665562361 has 8 divisors (see below), whose sum is σ = 12532411209024. Its totient is φ = 10731777364560.

The previous prime is 11631665562359. The next prime is 11631665562383. The reversal of 11631665562361 is 16326556613611.

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 11631665562361 - 2¹ = 11631665562359 is a prime.

It is a super-2 number, since 2×11631665562361² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11631665562299 and 11631665562308.

It is not an unprimeable number, because it can be changed into a prime (11631665562331) 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, 214334035 + ... + 214388296.

It is an arithmetic number, because the mean of its divisors is an integer number (1566551401128).

Almost surely, 2^{11631665562361} is an apocalyptic number.

It is an amenable number.

11631665562361 is a deficient number, since it is larger than the sum of its proper divisors (900745646663).

11631665562361 is a wasteful number, since it uses less digits than its factorization.

11631665562361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428724431.

The product of its digits is 3499200, while the sum is 52.

The spelling of 11631665562361 in words is "eleven trillion, six hundred thirty-one billion, six hundred sixty-five million, five hundred sixty-two thousand, three hundred sixty-one".