11106561616 has 20 divisors (see below), whose sum is σ = 21522590100. Its totient is φ = 5552344832.

The previous prime is 11106561593. The next prime is 11106561623. The reversal of 11106561616 is 61616560111.

It can be written as a sum of positive squares in 2 ways, for example, as 6177960000 + 4928601616 = 78600^2 + 70204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44940 + ... + 155668.

It is an arithmetic number, because the mean of its divisors is an integer number (1076129505).

Almost surely, 2^11106561616 is an apocalyptic number.

11106561616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11106561616 is a deficient number, since it is larger than the sum of its proper divisors (10416028484).

11106561616 is a wasteful number, since it uses less digits than its factorization.

11106561616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117006 (or 117000 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 11106561616 in words is "eleven billion, one hundred six million, five hundred sixty-one thousand, six hundred sixteen".