11161556650651 has 8 divisors (see below), whose sum is σ = 12179591543664. Its totient is φ = 10144079745120.

The previous prime is 11161556650631. The next prime is 11161556650661. The reversal of 11161556650651 is 15605665516111.

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 11161556650651 - 2⁵ = 11161556650619 is a prime.

It is a super-3 number, since 3×11161556650651³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11161556650595 and 11161556650604.

It is not an unprimeable number, because it can be changed into a prime (11161556650631) 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, 139455040 + ... + 139535053.

It is an arithmetic number, because the mean of its divisors is an integer number (1522448942958).

Almost surely, 2^{11161556650651} is an apocalyptic number.

11161556650651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11161556650651 is a deficient number, since it is larger than the sum of its proper divisors (1018034893013).

11161556650651 is a wasteful number, since it uses less digits than its factorization.

11161556650651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278993741.

The product of its (nonzero) digits is 810000, while the sum is 49.

The spelling of 11161556650651 in words is "eleven trillion, one hundred sixty-one billion, five hundred fifty-six million, six hundred fifty thousand, six hundred fifty-one".