11116623661 has 8 divisors (see below), whose sum is σ = 13060089504. Its totient is φ = 9328635120.

The previous prime is 11116623659. The next prime is 11116623671. The reversal of 11116623661 is 16632661111.

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 11116623661 - 2¹ = 11116623659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11116623671) 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, 38869171 + ... + 38869456.

It is an arithmetic number, because the mean of its divisors is an integer number (1632511188).

Almost surely, 2^11116623661 is an apocalyptic number.

11116623661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11116623661 is a deficient number, since it is larger than the sum of its proper divisors (1943465843).

11116623661 is a wasteful number, since it uses less digits than its factorization.

11116623661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77738651.

The product of its digits is 7776, while the sum is 34.

The spelling of 11116623661 in words is "eleven billion, one hundred sixteen million, six hundred twenty-three thousand, six hundred sixty-one".