11116556161650 has 72 divisors (see below), whose sum is σ = 29886567744384. Its totient is φ = 2962421244000.

The previous prime is 11116556161649. The next prime is 11116556161651. The reversal of 11116556161650 is 5616165561111.

11116556161650 is a `hidden beast` number, since 1 + 1 + 1 + 16 + 5 + 5 + 616 + 16 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (11116556161649) and next prime (11116556161651).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 11116556161596 and 11116556161605.

It is not an unprimeable number, because it can be changed into a prime (11116556161651) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7637326 + ... + 8975625.

It is an arithmetic number, because the mean of its divisors is an integer number (415091218672).

Almost surely, 2^{11116556161650} is an apocalyptic number.

11116556161650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11116556161650 is an abundant number, since it is smaller than the sum of its proper divisors (18770011582734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11116556161650 is a wasteful number, since it uses less digits than its factorization.

11116556161650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614456 (or 16614448 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The spelling of 11116556161650 in words is "eleven trillion, one hundred sixteen billion, five hundred fifty-six million, one hundred sixty-one thousand, six hundred fifty".